How Spider-Man Can Exit The MCU (And Then Continue Without It)
4. How He Can Exit & How He Can Continue: Have Him Travel The Multiverse
Instead of retiring or dying, Spidey could decide to travel the multiverse to escape the danger that now follows him by everyone knowing his secret identity (and thinking that he's a massive terrorist).
Okay, maybe Peter just 'deciding' to jump from world to world is a bit of a stretch, especially seeing as Quentin Beck's telling him that there is a multiverse shocked him so much and Doctor Strange is yet to even step foot outside of the MCU's reality. So, instead, tie it into last year's Into The Spider-Verse and have the 2099 universe-hopping Spidey recruit the Tom Holland version into the Web Warriors.
This would leave the door open for the character to return to the MCU, but also appear in any and all Spider-Verse sequels.