What if this happened?: - Differences from the 2011 live action film
Instead of having a live-action/CGI hybrid format, it can have very stunning animation, which would be a huge step-up from the series and was done by Top Draw Animation, using Toon Boom Harmony.
It would have a very great grasp of the source material and would be very welcoming to newcomers for The Fairly OddParents, as it sets up the series' signature tone, presents who the characters are and explains all that is happening in Dimmsdale, and it also brings back the charm of the first 5 seasons (the show's golden age) and even seasons 6-8 (the show's silver age), with some changes and tweaks here and there, being written by Butch Hartman and Steve Marmel.
Timmy is 17 years old instead of being 23 years old, and attends Dimmsdale High School, instead of staying at 5th grade in Dimmsdale Elementary School.
Trixie Tang and Tootie would be Timmy's love interests instead of just Tootie.
Cosmo, Wanda, and Poof would mainly disguise themselves in public.
Cosmo is the only one sabotaging Timmy's date with Trixie and Tootie, while Wanda intervening his plans.
Have Mr. and Mrs. Turner be duo of smart parents who truly care for their son, Timmy, and do anything to make sure he’s okay, like in the Oh Yeah! Cartoons shorts.
The film would have a post-credit scene with Timmy leaving his fairies behind like how Ryan Beane interprets it: Timmy, Trixie, and Tootie walking into the sunset with Timmy's heart filled with hope and aspirations for the future, as much as he doesn't want to leave Cosmo, Wanda, and Poof, according to Da Rules, this is something he has to do now. Timmy begins to tear up as he looks back to Cosmo, Wanda, and Poof, as they're tearing up as well. Timmy tells them to not be sad, because they succeed their job of making him happy. Then Cosmo, Wanda, and Poof get sent to Fairy World via Fairy Cab and smile as their new child mirrors who Timmy used to be, they're hopeful to make their future kid's life better, like how they did with Timmy. A mid-credits scene would show Timmy marrying both Trixie Tang and Tootie and have two children named Tammy and Tommy, a reference to Channel Chasers.
The Anti-Fairies would be main villains, with Hugh J. Magnate being Anti-Cosmo's human disguise.
The beginning would have an opening narration, provided by Jim Cummings, and it would be similar to Fairly Odder, but done better
It would serve as the series finale, just like The SpongeBob SquarePants Movie should've been.
Instead of Chester and A.J. helping no further and drive off, telling Timmy he still owes them girlfriends, Chester and A.J. decide to drive off to get reinforcements, such as Sanjay, Tad, Chad, Elmer, Dwight, Veronica, and Molly to help Timmy save Trixie, Tootie, and his fairies.
The Timmy Turner loophole would still be intact, but it will state that: If there is ever a boy named Timmy Turner, and if he has kept and love his fairy godparents for 13 years, and saved Fairy World more than a few occasions, and promises to make wishes for others and not just for his own selfish purposes, he or a future child of his may keep Cosmo, Wanda, and Poof and will still remember them.
Have Cosmo be depicted as a cross between his Oh Yeah! Cartoons portrayal and his seasons 1-5 portrayal.
Remember that dog joke Cosmo told Timmy? Well, he does, but it's not Sparky, instead he has a talking dog named Spud in this movie.
Instead of being 1 hour and 1 minute, the runtime would be 2 hours, 10 minutes, and 10 seconds.
Timmy's business, "Wishful Thinking", would still be intact and still be from out of a pink van, but their employees would be A.J., Chester, Sanjay, Elmer, Dwight, Veronica, Tad, Chad, and Molly.
Voice Cast
Zach Braff, Yuri Lowenthal or Bryce Papenbrook as Timmy Turner
Tara Strong will also reprise her role as 10-year-old Timmy Turner from the original series.
Grey DeLisle as Tootie Miller, Vicky Miller, Veronica Star, Martha James, Molly Manson, Swizzle, Alyssa Armstrong, Principal Geraldine Waxelplax, and The Tooth Fairy
Dionne Quan as Trixie Tang
Daran Norris as Cosmo, Anti-Cosmo, Jorgen Von Strangle, and Mr. Turner
Steven Weber voices Hugh J. Magnate, Jr., who is later revealed to have been a disguise by Anti-Cosmo.
Jason Mantzoukas or Tim Robinson as Spud, Timmy's new pet dog
Spud's vocal effects are provided by Billy West
Susanne Blakeslee as Wanda, Anti-Wanda and Mrs. Turner
Christie Laing voices Janice, who is later revealed to have been a disguise by Anti-Wanda.
Tara Strong as Poof, Tammy and Tommy Turner, and Lauren Ledergerber
Randy Jackson voices Poof's first words
Eric Bauza as Foop
Tara Strong also voices the evil bunny, who is later revealed to have been a disguise by Foop.
Charlie Schlatter as Dwight O' Leary and Irving
Kevin Michael Richardson as Dark Laser and Anthony James Sr
Jim Ward as Chet Ubetcha and Doug Dimmadome
Kari Wahlgren as Mercy Frank
Kimberly Brooks as Libra Lane
Rob Paulsen as Mark Chang, Bucky McBadbat
Jason Briggs as Francis Callahan
Tom Kenny as Cupid
Ben Stein as Head Pixie and Sanderson
Jess Harnell as Philip Tad
Dante Basco as William Chad
Phil LaMarr as Anthony James "A.J." Jr
Jason Marsden as Chester McBadbat
Norm McDonald as Norm
Dee Bradley Baker as Elmer Boyle, Sanjay Patel, and Remy Buxaplenty
Carlos Alazraqui as the Mayor of Dimmsdale, Juandissimo Magnifico, Chompy the Goat, Sheldon Dinkleberg, and Denzel Crocker
Jim Cummings as the Opening Narrator
Changes
This would serve as the franchise's true grand finale. However:
Some season 9 episodes and a few season 10 episodes would've been reworked into season 8 episodes that would be written better than they already are, like The Terrible Twosome, Viral Vidiots, Cosmonopoly, School of Crock, Dimmsdale Tales, The Past and the Furious, The Fairy Beginning, Return of the L.O.S.E.R.S, Fairly Odd Fairy Tales, Fairly Odd Pet, Dinkle Scouts, Dumbbell Curve, App Trap, Finding Emo, Country Clubbed, A Perfect Nightmare, Dimmsdale Daze, A Chip Off the Old Crock, The Big Fairy Share Scare, and lastly Certifiable Super Sitter, but Meet the Oddparents would still be the season 8 finale.
The season 7 episode Farm Pit would first premiere on July 24, 2011.
The Fairly OddParents: Shadow Showdown would be adapted into a 45-minute TV movie with elements of the console version and PC version.
A Fairly Odd Christmas would still exist, but as a 45-minute Christmas television special during the events the first film, although being traditionally animated.
A Fairly Odd Summer would be renamed to A Fairly Odd Movie 2: Return to Volcano Island, with appearances from Jimmy Neutron and Danny Phantom.
Season 9, Season 10, and The Fairly Oddparents: Fairly Odder wouldn't exist at all due to them being considered the downfall of the The Fairly Oddparents, with most being replaced with other projects. That being said, there would still be a bunch of side projects for the franchise to get made, such as the Prequels and Spin-offs for it. A New Wish still exists, but there are now elements from this movie, including the inclusion of Poof, and it releases earlier in 2022 as a replacement to Fairly Odder.