In an interview with IGN producer Lauren Shuler Donner confirmed that the new mutant series, Legion, will not be connected to the X-Men cinematic universe but the X-Men series will have some cross-overs.
“We’re making it separate. We’re our own world, Matt’s is much more a part the world in terms of there are mutants, mutants are hated and there are Sentinels — though very different from what we’ve seen before. You feel like you’re here in the X-Men world. With ‘Legion,’ we’re our own universe. It gives Noah the freedom to do what he wants to do. Because we play with so many different timelines, and we rebooted and not really rebooted and all that, we felt like, OK, we’re going to throw it out there and hope the fans accept it.
The cinematic universe will not worry about ‘Legion’. They will not worry about these TV worlds at all. They will just continue in the way that they have been continuing, and there is some great stuff that we are developing. I can just say it’s going to be new and different, and yet ‘Legion’ and our other show, we’re not going to get in each other’s way.”
Legion premiers February 8th, 2017.