After revealing that all three stars in The Marvels are mutants, the most shocking character introduction the MCU could make would be Charles Xavier himself. While a multiversal variant of Patrick Stewart’s Professor X already appeared in Doctor Strange in the Multiverse of Madness, the MCU’s 616 resident Charles Xavier hasn’t made his debut yet. Ms. Marvel’s
heroic adventure with Captain Marvel and Monica Rambeau could put her on Professor X’s radar, and the telepath could extend her an offer to join his secret school of young mutants. Such an exciting moment would mirror Iron Man‘s iconic post-credits scene, where Samuel L. Jackson’s Nick Fury appeared before Tony Stark to reveal that Iron Man had “become part of a bigger universe”. Similarly, Professor X’s debut in The Marvel‘s post-credits scene would signal the beginning of a new era for the MCU with the advent of mutants like Ms. Marvel.