10 Theories For How Deadpool Could Join MCU
3. Escaping Fox's X-Men Universe
It's believed that Doctor Strange in the Multiverse of Madness is going to take Benedict Cumberbatch's Sorcerer Supreme on a journey through a series of alternate realities and timelines. It's already widely believed that he'll cross paths with Tobey Maguire's Spider-Man (especially with Sam Raimi in the director's chair), but what if he were to enter a very different world full of superheroes?
Bear in mind that Kevin Feige got his start working on 2000's X-Men, so he's bound to have a fondness for that franchise, and could very well relish the chance to say goodbye to it with the Doctor Strange sequel. However, as that world comes to an end (likely at the hands of the villainous Nightmare), perhaps Deadpool could make his escape from the X-Men Universe at the very last-minute!
He could join Strange on part of his Multiverse journey before a post-credits scene reveals he's found a new home. This eliminates the need for a reboot, new origin story, or any complicated retcons.