What we know about Avengers: Doomsday is limited, but fans are hyped to see mutants back on the big screen. A rumor from Cosmic Circus claims that the X-Men will be wearing brightly colored costumes, which are more accurate to the comics and cartoons. Scooper Alex Perez writes:

With the pieces of the puzzle coming together, here are all the super teams either confirmed or rumored to be in Avengers: Doomsday.

We have a rumoured list of actors who will return in Avengers: Doomsday next December, along with details on the costumes that the X-Men will don when they cross paths with Earth's Mightiest