Team-based superheroes have been part of comic books since the very beginning, and that’s crossed over to the silver screen too. The MCU’s flagship has been the Avengers movies, featuring previous solo stars coming together. Initially it was just those under the Avengers banner, but with Infinity War and Endgame it became a catchall for the entire roster.
However, with Tony and Natasha dead, Steve an old man and Hawkeye likely retired, the Avengers as we knew them are no more. That’s before you even get into the fact Vision died in Infinity War too and Thor finished Endgame with the Guardians.
It’s possible that the likes of Captain Marvel, Spidey and Black Panther could step in to keep the franchise going, but it’s also likely that some new teams will join the MCU soon.
Either through existing heroes teaming up, new supers rising or pre-made teams stepping across potential multiverses, Marvel has a deep roster of team ups to call upon.
For what it’s worth, the Eternals haven’t been included here, as their movie starring Angelina Jolie and Richard Madden has been confirmed, while this is purely speculative.