MCU: 10 Possible Uses Of The Multiverse In Phase 4 (And Beyond)
5. We Could See All Sorts Of Crazy Alternate Versions Of Popular Heroes
Marvel's comics are packed full of wacky and wonderful alternate versions of just about every hero you can think of, from a Punisher/Ghost Rider mashup, to the Iron Maniac, an evil alternate version of Iron Man.
These different versions of famous characters usually reside in their own individual universes with their own storylines, sometimes meeting their counterparts on special occasions. Up until this point, the MCU hasn't really dabbled in this alternate character pool, choosing to keep its main heroes as similar as possible to their main comic-book inspirations. But now, the multiverse will allow Marvel Studios to expand the types of characters it brings into its movies.
The Earth-833 mentioned by Mysterio is - in the comics - home to Spider-UK, a British-inspired version of the webslinger called Billy Braddock. Now that his universe also exists in the movies, Spider-UK could be brought into the third Spidey film for a team-up with our main Peter Parker. Heck, Braddock could even pop-up in the third act of Far From Home, or after the credits.
Another option lies with Tony Stark. The comic-book miniseries Fantastic Four: The End features the consciousness of the deceased Tony jumping from artificial body to artificial body. With Tony now dead in the MCU, this is one way he could be brought back without a full-on resurrection.
Or how about Miles Morales Spider-Man? Venom Thor? President Steve Rogers? The sky really is the limit here, and the multiverse gives Marvel Studios a near-unlimited toy box to mess with.