The X-Men are some of the most prominent characters in the Marvel Universe, and this extends to alternate universes. After all, the team and mutants as a whole were very important in the original version of the Ultimate Universe. That world ended up radically changing the species' history, and the same might happen in its modern counterpart.
Source:https://www.cbr.com/marvels-new-ultimate-x-men-may-completely-change-mutants/