Hugh Jackman's Wolverine could return to the MCU, but his future in the franchise has been challenged by Captain America: Brave New World.

Director Julius Onah reveals details of the introduction of adamantium, and confirms its continued connection with the beloved X-Men character.

That's because Captain America: Brave New World brings adamantium into the fold. The substance shows up in the body of the Celestial that emerged from the Indian Ocean in Eternals. Now, it's the cause of international conflict, as major world powers try to control the world's only known adamantium supply.