https://thecosmiccircus.com/alex-perez-august-qa-part-1-avengers-doomsday/
>The main character of Avengers: Doomsday will be Robert Downey Jr.’s Doctor Doom, similar to how Josh Brolin’s Thanos was the main character of Avengers: Infinity War.
>Doom sees the ongoing incursions as a danger to the Multiverse and intends to stop them using a young Franklin Richards. He views himself as the hero of this story and will do whatever it takes to remain in power.
>Captain America's Avengers, the New Avengers, the Fantastic Four, the X-Men and Team Loki are all there. Doom will also have a team, though he doesn’t really need anyone.
>The film will feature Earth-616, Earth-828, and a version of the Fox X-Men’s Earth. Another Earth completely decimated by an incursion will be shown to illustrate the scale of the threat to the heroes.
>Chris Evans and Hayley Atwell are confirmed to appear, with Steve Rogers and Peggy Carter forced out of retirement for an "end of the world" scenario.
>Steve creating a branch timeline to be with Peggy was the source of the incursions and Doom is now after him for revenge.
>Other characters from Earth-616 include Spider-Man, Doctor Strange, Clea, Monica Rambeau, Hulk, She-Hulk, Kate Bishop, Ms. Marvel, Stature, Love Thordottir, Wasp, Okoye, Deadpool and Wolverine.
>The heroes who have been the faces of Phases 4, 5, and 6 (primarily in movies) will have a bigger focus and will "try to" have equal screen time and appearances.
>Thor's role will be to "join the fray to stop the incursion from destroying this universe".
>Monica Rambeau will have a larger role story-wise compared to Thor, though Thor is expected to appear more frequently.
>The X-Men's costumes will be a blend between Astonishing X-Men and X-Men '97. More X-Men characters are expected beyond the initial seven announced, as the X-Mansion is full of fun mutant cameos.