IGN recently sat down with Lauren Shuler Donner for a lengthy chat about Legion, and she confirmed in the interview that the upcoming FX series will not take place in the same world as the X-Men movies. There's been a lot of confusion about whether or not that would be the case, but it was also thought that they probably were linked, albeit with Legion standing apart from the big screen stories.

Despite saying that the show will "touch on" David Haller's father (Professor Charles Xavier in the comic books), she added: "[We're] making it separate. We're our own world." Pushed for details on what that is when it was recently confirmed that Matt Nix's upcoming family drama is going to be set in the film universe, Donner dropped some intriguing details about what we should expect from that. 

"Matt's is much more a part of just the world in terms of there are mutants, mutants are hated and there are Sentinels —
Source: COMIC BOOK MOVIES