Forget the Red Hulk – Captain America: Brave New World ‘s real “big debut” is adamantium. After all, adamantium’s introduction in the upcoming blockbuster is surely a signal that the MCU’s new Wolverine – and by extension, the franchise’s long-awaited X-Men reboot – is edging closer to the big screen.

Brave New World, or Captain America 4, Adamantium will make its way into the Marvel Cinematic Universe, setting the stage for Wolverine's origin and future storylines. The film will depict Adamantium as a newly discovered resource originating from the dead Celestial seen in Eternals.