A new Avengers: Secret Wars rumor provides some insight into how Doctor Doom will create Battleworld.

Marvel Studios’ Avengers: Doomsday is currently in post-production. Directed by Joe and Anthony Russo, also known as the Russo Brothers, the movie will be released in United States theaters at the end of this year. The sequel, Avengers: Secret Wars, then follows in 2027.

What is the Avengers: Secret Wars rumor?

In Jonathan Hickman and Esad Ribić’s Secret Wars comic, the Marvel Multiverse is destroyed after a series of incursions. Doctor Doom, however, manages to save pieces from various universes and then uses them to form a new planet called Battleworld, which he rules over.

While official plot details for Avengers: Doomsday and Avengers: Secret Wars remain under wraps at this time, Marvel fans are expecting the movies to feature an incursion that will result in the creation of Battleworld. Now, per scooper James Mack, some new details have come to light regarding how Battleworld will be created.

Mack reports that, once the incursion happens, “one group will survive in the Quantum Realm and another on a ship/raft over the ground of the Void (TVA) when Doom creates Battleworld. In the Void, Doom is like Cassandra Nova, but ruling everything, the GOD.”

In the MCU, the Void (not to be confused with the Void featured in Thunderbolts*, which is a different concept entirely) is a wasteland at the end of time that has been seen in the Loki TV show and Deadpool & Wolverine. Assuming that Mack’s scoop is correct, this might mean that Battleworld might be a place that Doom creates within the Void rather than being a brand-new planet.

Mack also seemingly confirmed a theory suggesting that Ant-Man and the Wasp: Quantumania’s Cassie Lang, who is played by Kathryn Newton in the MCU, will be the one to take certain characters into the Quantum Realm when the incursion happens. While Newton’s casting has not yet been officially confirmed by Marvel, she was recently seen donning an Avengers: Doomsday production hat.

Avengers: Doomsday arrives on December 18, 2026. Avengers: Secret Wars is dated for December 17, 2027.