Board Thread:General Discussion/@comment-2054358-20150809032033/@comment-9062114-20160322035225

Because they usually like to reboot when trying to involve properties into their universe, it seems like the guys at Marvel Studios (at least the movie part) are very protective about what goes in and out of the canon (which has paid off, due to the lack of continuity errors, compared to... say... the X-Men Foxverse).

They didn't keep rebooted Sony Spider-Man in the MCU, I don't see them doing that with the core cast of the X-Men. Maybe with Deadpool though, because that could be retconned. But the whole Multi-dimensions and fusing stuff might be too complicated and out there for them. Not to mention if they don't agree with the Fox casting or storylines....