"Spider-Man is going to be the key, the hero, the Anchor Being, to wake everyone up from the distorted reality and fight Doom," said Marvel fan blurayangel on Instagram, noting that Peter's identity was erased in No Way Home, even perhaps to Doom himself.

Avengers: Doomsday will see Robert Downey Jr. return to the Marvel Cinematic Universe as Doctor Doom, which will allow him to play a villain. That's going to provide a significant change to the MCU and for Downey Jr. himself, while it leaves a major opening within the Avengers for someone to step up and take his spot.

In the Marvel Comics, Doctor Doom's quest for power and control is well-documented, often culminating in the creation and domination of Battleworld in the Secret Wars event. This realm, made up of fragments from different realities, could be seen in Avengers: Doomsday, as hinted by leaked concept art.

Avenger: Doomsday concept art has leaked, and Disney does not seem to be cracking down on it, letting it generate hype on its own.

Secret Wars have a ton of promising elements. They’ve got some great Marvel heroes ready to reform the Avengers. They get to pay off the Multiverse Saga in a huge way — possibly by temporarily destroying or radically changing the Marvel Cinematic Universe,