So, besides LEGION, there's another live-action X-MEN series on the way called GIFTED. It's about "two ordinary parents (Stephen Moyer and Amy Acker) who discover their children possess mutant powers. Forced to go on the run from a hostile government, the family joins up with an underground network of mutants and must fight to survive" and will directed by X-MEN, X2, DAYS OF FUTURE PAST, and APOCALYPSE director Bryan Singer.
Not only that, but none other than Stan "The Man" Lee will be making a cameo on the show! I don't know if he's done much cameos on the MCU TV shows (correct me if I'm wrong in the comments), but this is still pretty cool I guess.
Here's Singer making the announcement on Instagram:
Wow, it has been almost twenty years since the first X-MEN, huh? And it's kind of sweet to see it coming full circle a bit, with Stan Lee making his first cameo on X-MEN and then returning with Singer to another X-Men project. Hopefully it's not too intrusive (like pretending he's Hugh Hefner or some shit).
Either way, GIFTED will air on FOX June 2017.