Undeveloped Star Trek : Enterprise episodes Numerous undeveloped " Star Trek " episodes were written for . These stories were submitted or developed for production , but for various reasons never aired . Even in the series ' first season , many story pitches ended up being unused for " Enterprise " . Fred Dekker , who worked on that initial season , later recalled , " " On " Enterprise " , we staff writers would hear pitches a few times a month , and I came across a couple of ideas that I thought would make terrific episodes . So I would write these up and submit them thinking , ' Yeah , this is going to make for a great episode of " Enterprise " , ' only to never hear anything about them again . It was like throwing ideas into a black hole . " " ( ) Either late in ENT Season 2 or during the interim between that season and the next , Judith and Garfield Reeves - Stevens suggested multiple narrative ideas to Mike Sussman and Phyllis Strong . " " We had a great meeting with Mike and Phyllis , and pitched all sorts of stories , " " remembered Garfield Reeves - Stevens . However , the plot concepts were deemed unnecessary because the series was about to enter a season - long arc exploring the Xindi incident and therefore didn ' t require a lot of standalone episodes . ( " Before Her Time : Decommissioning " Enterprise " , Part One : New Voices " , ENT Season 4 Blu - ray special features ) Undeveloped episodes during the run of the series . Tom Bergeron story . Shortly after guest - starring as D ' Marr in , Tom Bergeron pitched an ENT story idea to Rick Berman , though it wasn ' t developed . ( ) Billiard ball story . Sometime prior to the third season , Executive Story Editor André Bormanis pitched , to Brannon Braga , the concept of " Enterprise " encountering " a completely featureless planet , something that ' s the size of the Earth but is as smooth as a billiard ball , " in Bormanis ' words . Though he reckoned this was " a cool idea " , he was unsure what the rest of the story should be about . Braga liked the notion of a featureless planet but asked Bormanis , " " What ' s the story ? " " Years thereafter , Co - Executive Producer Chris Black commented , " " I don ' t think we ever did the billiard ball in space . " " Bormanis agreed but felt a similar concept ended up being the Delphic Expanse sphere s portrayed in the third season . ( audio commentary , ENT Season 3 Blu - ray special features ) Boomer stories . Boomer s were originally to have featured more in the series ' first season than they ultimately were ; this was changed following the airing of the season ' s only Boomer - centric episode , . " " We had another story or two planned with the Boomers , " " recalled series co - creator and executive producer Brannon Braga , " " but we decided not to delve too much into meeting Human s all the time . " " Reasons for this were that the writers wanted to avoid making it seem as if " Enterprise " was close to Earth and preferred to focus on other aspects of the Travis Mayweather character than his heritage as a Boomer . ( ) Colonel Green story . During the fourth season , Manny Coto wanted to do a story featuring Colonel Green ( with Peter Weller as Green ) . ( audio commentary ) Garfield and Judith Reeves - Stevens devised a story which was not only about Colonel Green but additionally concerned the NX class as well as the opening of the first starbase , which was called Starbase 1 . The Reeves - Stevenses also used the narrative to refer to a political movement called the Optimum , which the writers reused from their novel " " ; the organization was linked to Colonel Green . The story additionally involved Malcolm Reed , establishing a heretofore secret connection between his great - grandfather and Colonel Green . " " We had Malcolm crawling over the outside of the ship , " " commented Judith Reeves - Stevens . " " It was wonderful . " " The Reeves - Stevenses took the story idea to Manny Coto . " " We ' d worked it all out in our office , on cards , and we went in there , " " continued Judith Reeves - Stevens , " " and I wish we ' d had video of us doing this incredible presentation , where we were smacking those cards on , one after another , so Manny was so excited and said , ' I can ' t wait to do this episode . " " Garfield Reeves - Stevens added , " " And so , Manny said , ' Yeah , I love this story . Write the outline . ' So , we did an entire beat outline , took it to Manny , [ he ] said , ' Yes , this is great , ' and Brannon [ Braga ] took one look at it and said , ' It ' s too dark . " " ( audio commentary , ENT Season 4 Blu - ray special features ) Ultimately , the story was also not accepted because , in the words of Judith Reeves - Stevens , " " Its lunch was eaten by the Soong , " " or , in other words , it became hard to do another story featuring genetically engineered Humans . ( The Augment trilogy was actually conceived with Green as their leader , but the character was instead made an ancestor of Noonien Soong , to accommodate the fact that Brent Spiner was interested in appearing on the show . ) Green ( and Peter Weller ) later featured in . ( audio commentary ) One detail that would have featured in the undeveloped episode was a flag first seen on Q ' s World War III uniform from , which would have been tied to Green ' s faction . A flag featuring the emblem was produced for , with the hope that it could be reused , but this never came to pass . Korath story . A story idea involving the Klingon character of Korath , from series finale , was thought up and pitched by the actor who played him , " Star Trek " veteran Vaughn Armstrong , who also portrayed Admiral Maxwell Forrest in " Star Trek : Enterprise " . ( ; ) Armstrong stated , " " An episode I would love to see would show Korath taking the time machine that Janeway stole from him and going back to stop Admiral Forrest from sending people out into space ! " " ( ) Armstrong imagined Korath seizing the time machine from Janeway herself , and it was Forrest approving the launch of , depicted in ENT pilot episode , that the Klingon was attempting to prevent . " " I ' m plugging that because the overtime would be great , " " noted Armstrong . Although the make - up time would have also been extreme , Armstrong didn ' t find that a problem , feeling that the durations he spent in the make - up chair often allowed him time to memorize his lines . Mars independence story . During the fourth season , Manny Coto wanted to make an episode dealing with the Fundamental Declarations of the Martian colonies . The audio commentary for described it as a sort of on Mars , with the comet s used for terraforming the planet being aimed at Earth . The story never materialized , but the idea of comets being used for terraforming Mars found its way into . Phlox story . Jack Treviño , Steve Fratt and Dr . Joseph DiLella pitched several " Enterprise " stories , all serving what Treviño described as " lesser utilized characters " ( i . e . , Phlox , Hoshi Sato , Travis Mayweather and Malcolm Reed ) . One of these stories involved Phlox being compelled , by a powerful force , to create Frankenstein - type creatures out of six different species , including Humans . Porthos stories . In the special features for ENT Season 4 DVD , André Bormanis claimed that many ideas for Porthos episodes were pitched . These included Porthos becoming intelligent , Porthos being the only member of the crew capable of communicating with a canine alien , and even Porthos having to take command of the ship . Bormanis suggested that part of the reasoning why these stories weren ' t made was that the production staff didn ' t want Porthos stealing the show . Given the generally humorous tone of the segment , it might be that Bormanis was merely making these pitches up . In addition , Breezy ' s handler claimed , in the segment , that he had suggested a story in which Porthos changes sex in a transporter accident , so to explain why the male Porthos was played by a female dog . " Pulp Fiction " - like story . According to Linda Park in ) , Connor Trinneer pitched a story similar to , told from the perspective of aliens . the crew would speak gibberish until they found a way to communicate . William Shatner two - parter . During the fourth season , there were efforts to write an episode that included a role for William Shatner . ( " Inside the Mirror Episodes " , ENT Season 4 DVD special features ) One of these early concepts involved the mirror universe . At the Grand Slam XIII " Star Trek " convention in March 2005 , Manny Coto recalled , " " We had talked about doing a mirror universe episode ever since we got into Season 4 . But then we had the possibility of getting William Shatner . Coincidentally , the Reeves - Stevens < nowiki > [ < / nowiki > Judith and Garfield Reeves - Stevens , who had worked with Shatner on several " Star Trek " novels ] were a pair of writers whom I desperately wanted to bring on the show . And they , it turned out , had an idea for a mirror universe two - parter which would feature the return of William Shatner . " " At the same convention , Garfield Reeves - Stevens explained , " " The idea was that the Tantalus field was not a disintegrator , it was a humane way of dealing with prisoners , by sending them back in time to a sealed penal colony . " Enterprise " ( NX - 01 ) comes upon the colony – and Tiberius < nowiki > [ < / nowiki > < nowiki > ] < / nowiki > is there . Tiberius thinks , ' Finally , a ship with a transporter – I can get back to my own universe , my own time . ' He basically goes on the NX - 01 , gets to the transporter , sets it to go back to the mirror universe – the mirror universe doesn ' t exist . " " " " It hasn ' t been created yet , " " Judith Reeves - Stevens added . Garfield continued , " " So Tiberius and Archer work together to figure out where the division point is between the universes , what point that one split off into the other . And as it turns out , Tiberius and Archer together are responsible for the creation of the mirror universe . " " William Shatner himself pitched this story concept to executive producers Manny Coto , Brannon Braga and Rick Berman , over lunch . The idea was well received by Coto , Berman and Braga . However , Berman then pitched an alternative concept , this one having been devised by Mike Sussman . The idea was totally unrelated to the mirror universe and involved Shatner playing " Enterprise " s , who would bring into the future to preserve the timeline by successfully posing as James T . Kirk during an important event in history . As Shatner and Paramount were unable to reach an agreement , the plans to have him included in the series were discarded . However , the desire to visit the mirror universe remained , and resulted in the production of and . Spock story . In a memo Mike Sussman wrote Manny Coto ( dated ) , he suggested that , if they were unable to arrange a deal with William Shatner , they could perhaps do an episode or two with Leonard Nimoy playing Spock . Sussman proposed that the story , intended for the show ' s fourth season , might be based on a two - parter in called " Mystery of the Blues " , in which guest starred as a middle - aged in a framing story about how he learned to play jazz as a young man ( with playing the young version of the character ) . As the memo continued , Sussman commented , " " We could find Spock in the 24th century , a distinguished and retired Ambassador , who has a young visitor . Maybe this guy is a Vulcan / Human hybrid like Spock , and needs advice on balancing his two alien halves . This visit could lead Spock into recounting an adventure he had early in his career as a Starfleet cadet . This adventure could involve Young Spock ( played by another actor ) helping a middle - aged T ' Pol ( now in her early to mid - 100 ' s ) on some vitally important mission . . . In the process , Spock could learn some lesson which helped him choose his own path in life . We may learn a lot of new info on Spock . . . Perhaps he was torn between life as a diplomat ( like his father ) and a career in Starfleet when he was a young man . The adventure should involve Captain Archer ( and other members of our cast ) in old - age make - up , playing early 23rd century versions of themselves . Maybe their adventure is something of a ' Last Round - Up ' for the old crew , whom T ' Pol reunites for a secret and possibly illegal TBD mission . I thought it might be fun if our crew have to steal an antiquated NX - class ship from the Starfleet museum for one last adventure together . " " Tan Ru story . The stories which Jack Treviño , Steve Fratt and Dr . Joseph DiLella pitched included one involving " Tan Ru " , the probe that went on to , as established in , collide and merge with Nomad . According to Treviño , at the time " Enterprise " was canceled , there was every indication that this story was about to be sold . Proposed fifth season episodes . As " Star Trek : Enterprise " was officially canceled on , its fifth season was never produced . The series ' producers , however , had already devised plans for future seasons , which could have begun to air by September 2005 . Most information is based on comments by producer Manny Coto . At the 2009 VegasCon , Coto suggested that two story arcs of the season would have been to show " origins of the Federation " and " whispers of the Romulan war " . Consequently , the Romulans would be the major villains of the season , although other species may have appeared in the mini - arcs . Brannon Braga also noted that he and Rick Berman had considered making " Future Guy " a Romulan . . However , later Braga claimed this was a red herring , and that the season would see future guy revealed as Archer himself , trying to influence his younger self to set right the timeline . Coto had also hoped that season 5 would see more stories offering social commentary , compared to season 4 . Manny Coto has also said , had the series been given a fifth season , the recurring character of Shran may have joined the " Enterprise " as an " auxiliary or an advisor " . Stratos story . " Enterprise " was due to revisit ( or actually previsit ) the cloud city Stratos on Ardana . In , Manny Coto admitted , " " I do want to do one or two episodes that take place on the Cloud City of Stratos . I want to see the early stages of that . I think it ' s a very fertile place for a storyline . " " ( ) Despite some initial ambivalence over whether he wanted the story to be comprised of one or two episodes , Manny Coto was later clearer about his intentions for the narrative ' s length when , in , he spoke about how he regretted having been unable to fit the Stratos storyline into the fourth season . " " I really wanted to do a two - parter on that location , to see Stratos in its earlier stages , " " he stated . " " That was a wonderful location and wonderful setting for a great two - parter . " " Kzinti story . A Kzinti episode had been suggested which would have served as a prequel to . The concept progressed as far as a " rough rendering " of a Kzinti starship which writer Jimmy Diggs commissioned . The story was provisionally titled " Kilkenny Cats . " First starbase . Plans existed for an episode showing the construction of the first starbase , most likely in the Berengaria system . Foreshadowing as to this had already been given in . Mirror Universe story . Revisits to the mirror universe and , now Empress of the Terran Empire , had also been discussed . At the 2009 VegasCon , Coto revealed that one idea was to spread four or five episodes through the season , as a kind of " mini - series inside a series " . He said that it was his " big regret " that he had not managed to follow through on the idea . Brannon Braga revealed via his Twitter account that before cancellation there was some talk about setting the entire fifth season in the mirror universe . Borg Queen origin story . Judith and Garfield Reeves - Stevens pitched a story with Alice Krige as a Starfleet medical technician who makes contact with the Borg from Season 2 ' s and becomes the Borg Queen . T ' Pol ' s father . Writer / producer Mike Sussman hoped to have T ' Pol finally meet her father , and reveal to the audience that he was in fact a Romulan agent who had posed as a Vulcan officer prior to faking his own death . The suggestion that T ' Pol was half - Romulan would have shed light on her affinity for Humans as well as her interest in experimenting with emotions . ( , " Information provided by " ) Flint story . According to " Entertainment Weekly " , there was an episode " on the drawing board " to reportedly have featured Flint , under a previous alias , coming into contact with the crew of the " Enterprise " . The episode never made it to a script write , but initial storyboard ideas suggested a confirmation of Flint ' s alias of Abramson as a famous Earth scientist with possible connections to Flint knowing either ( or both ) Henry Archer and Zefram Cochrane . The episode would have ended with some type of discovery of Flint ' s nature by Phlox , leading to Flint ' s negative views on discussing his background with anyone , thus avoiding the " disaster of intervention " that he mentioned later in the TOS episode . Denobula visit . Manny Coto said that he would have liked to visit Denobula . Other ideas . Manny Coto had hoped to start accepting fan scripts again , and also have arcs by noted science fiction writers , , and . In a 2009 interview , British writer / producer Russell T Davies , showrunner of the British series " Doctor Who " , said that he had considered proposing a crossover between " Doctor Who " and " Star Trek " , but that the latter was canceled before the idea could be pursued . A design for a fifth season refit of the " Enterprise " is included in the 2011 " " calendar .