[Verizon Motorola Droid Turbo Q&A, Help & Troublesh] ChazzMatt:
Nexus Experience 10.4 (Marshmallow)

First, let's get people up to speed on this ROM. And the answer to your question will also be the answer to everyone's question about their favorite Quark ROM -- will it see Nougat?

There's a Marshmallow version of Nexus Experience ROM and the thread is over in the other Quark forum.

(Even though the ROM is now over there, it used to be here in this forum. This thread is here because we used to be all in one forum! And in my opinion, should still be one forum.)

And since you have an XT1254 and are using Nexus Experience, then it HAS to be the Marshmallow version. Therefore, you know the op to that ROM thread has not been updated to reflect the Marshmallow status. The thread maintainer is not the developer; the thread maintainer seems to have moved on to the Nexus 6P and has not posted on XDA since May 2016. But, again, he's not the developer Anderson Aragão -- who just recently released (September 2016) a Marshmallow version of Nexus Experience ROM for the Quark.

So, you have to start here with this post and go forward to read the current state of the ROM:

Nexus Experience 10.4 (Marshmallow)

http://xdaforums.com/showpost.php?p=68731265&postcount=175

As for Nougat, you will have to ask the developer Anderson Aragão. Since our CM dev [MENTION=2228410]Skrilax_CZ[/MENTION] is developing CM14 for us and all other Quark custom ROMs use [MENTION=2228410]Skrilax_CZ[/MENTION] kernel code... then a Nougat version of Nexus Experience for the Quark will be possible. But it's up to the developer Anderson Aragão whether he will continue to support the Quark.

You can probably ask him on his Google Plus page:

https://plus.google.com/+AndersonAragãoDev

https://plus.google.com/u/0/communities/109235522128893190473

He's from Brazil and in May 2015 initially he released a Lollipop ROM for the Moto Maxx XT1225, using CM's kernel code. (CM12 for Quark came in March 2015 and a little later, CM12.1.) Brazil was one of the main countries for the initial release of the "international" XT1225, and being a "Brazillian" ROM (or at least the dev was Brazilian) then a lot of demand for this ROM to be released for the XT1225.

When the XT1254 Droid Turbo bootloader was unlocked by Sunshine November 2015 then our CM dev [MENTION=2228410]Skrilax_CZ[/MENTION] tweaked the CM12.1 Lollipop kernel code to work for all Quarks (XT1225/XT1254/XT1250).

[MENTION=2228410]Skrilax_CZ[/MENTION] then continued that work with Marshmallow, releasing a CM13 ROM in February 2016 -- for ALL Quarks.

However, only in September 2016 (8 months later) did the Nexus Experience developer release a Marshmallow ROM which worked on all Quarks (and I'm pretty sure uses CM's kernel code, just like all other Quark custom ROMs). Until then all that was available was the older Lollipop Nexus Experience for XT1225 only. Until September 2016 the Quark version of Nexus Experience ROM had not been updated since August 2015 (over a year).

Only with the recent (September 2016) Marshmallow release did this ROM support all Quarks, like your XT1254.

[MENTION=2228410]Skrilax_CZ[/MENTION] really worked hard to bring the "Moto Display" IR sensors functionality over to "Ambient Display". All other Quark custom ROMs use his coding of that.

[MENTION=5747496]bhb27[/MENTION] (who lives in Brazil, like the Nexus Experience ROM dev) has developed a Quark kernel based on [MENTION=2228410]Skrilax_CZ[/MENTION] CM kernel work.

So, even though the Marshmallow Nexus Experience kernel is not "pure" CM kernel, since it works on your XT1254 I'm pretty sure it wouldn't exist without CM kernel. I also wouldn't be surprised if it's some kind of CM/BHB27 hybrid. ;)

Therefore, while [MENTION=2228410]Skrilax_CZ[/MENTION] has committed to bringing a Nougat-based CM ROM to Quark, all other custom ROMs (including Nexus Experience) will be dependent upon that CM14 ROM being available (especially the kernel code) and THEN dependent on those ROM developers' release schedule.

[MENTION=2228410]Skrilax_CZ[/MENTION] has taken the lead in development for our Quark phones and that will continue with Nougat-based ROMs. [MENTION=5747496]bhb27[/MENTION]'s body of work is equally impressive (official TWRP for Quark, a kernel, maintains two ROMs, etc.), of course. But by "lead", I mean the initial work coding both Lollipop and Marshmallow kernels for our phones, feature set like Ambient Display using IR sensors, and releasing "official" Quark CM ROMs which others can then build on -- as well as continual improvements to the CM Quark tree.