Vaughn Back for X-Men Sequel

It’s a given that all the original cast from the first movie signed a multiple picture deal in their contract so we expect James McAvoy and Michael Fassbender returning as Professor X and Magneto respectively. It may be some time before we learn whether any of the rest of the cast, such as Jennifer Lawrence’s Mystique or January Jones’ Emma Frost, will be included in a follow-up to the prequel or if any new X-Men characters will be introduced.