EW has reached out to representatives for DeMayo and Disney for comment.
It’s currently unclear why the exit happened, seemingly so abruptly.
Amy Sussman/Getty; Marvel Animation
X-Men ‘97picks up whereX-Men: The Animated Seriesleft off in the 1990s.

Beau DeMayo; ‘X-Men ‘97’.Amy Sussman/Getty; Marvel Animation
It was so much more simplistic than it is today.
[The X-Men] spent years telling humanity to embrace the future, walk into the future together.
What happens when they get hit with a future they didn’t see coming?