An MCU crossover movie doesn't have to be about The Avengers and other established heroes. As DC are doing with their Justice League movie, Marvel could populate a sprawling multi-hero adventure with new characters before spinning them out into solo films. And, given the expanded playbox that Spidey deal offers, Dan Slotts 2014 arc Spider-Verse could be an interesting framework for this sort of crossover movie. The crux of the Spider-Verse story, in the comics, is fairly simple. Supervillain Morlun and his estranged family The Inheritors are obsessed with hunting different Spider Totems from parallel universes. They travel between realties finding and killing each different version of Spider-Man that they find. The main Peter Parker has to team up with a lot of different versions of himself to stop the Inheritors, including Miles Morales from the Ultimate Spider-Man continuity, a version of Spider-Man from an alternate worlds year 2099, his formerly-evil clone Kaine, and even versions of Gwen Stacey and Uncle Ben that have become Spider-themed heroes in subtly different parallel universes. With all these new incarnations of Spider-Man to play with, coupled with the untouched-as-yet-by-the-MCU concept of parallel universes, a Spider-Verse crossover movie could be unlike any other Marvel film that weve seen so far. It could also function as a sounding board for future film ideas, particularly as Miles Morales has consistently been rumoured as a potential future hero for the MCU.
