When Doom unleashes phase 3 of his plan and becomes president under the alias Victor Drake after so much buildup, we see the conclusion of the Doom Saga when President Doom makes superheroes illegal. Thee fight for justice is long and hard but the Avengers eventually face off against Doom where many heroes are killed but when Loki returns with knowledge of the multiverse its revealed that during the events of the Kang movie, they all swapped universes due to the timelines being reworked and that's why things have felt so out of place. Loki and Doom get into a final battle where Loki picks up Thor's hammer and defeats Doom. The movie ends with the Avengers travelling back to their universe with the help of Loki and a variant of Kang and in doing so it resets the entire Marvel Universe. The Marvel Universe will return. Also, the Spider-Man movies will continue without the implications of this movie as if they were not cannon to the main timeline after Spectacular Spider-Man 9 but will still feature heroes like Daredevil, Luke Cage, etc.