Marvel's phases 5 and 6 include the experimental film, Thunderbolts.
The team, including Florence Pugh and David Harbour, will hunt for Adamantium on Genosha.
There are conflicting reports on the identity of the villain.
Some believe it will be Marvel's Evil Superman Sentry.
Others speculate that Richard Madden's Ikaris from Eternals will become the Evil Superman.
Ikaris has a history of villainous behavior and flew into the sun in Eternals.
The theory posits that Ikaris absorbed power from exploding suns and may return.
Thunderbolts also feature Olga Kurylenko, Harrison Ford, and more.
The film will delve into the celestial Tiamat.