Robert Downey Jr. is making Marvel fans lose their minds again. This time, it’s over a simple photo he posted from the set of Avengers: Doomsday. At first, it didn’t seem like a big deal. Just a comic book cover.

Marvel Studios president Kevin Feige reveals an official Avengers Doomsday scene involving the Fantastic Four, the Avengers and the Fantastic Four's universe, 828! The Fantastic Four First Steps has introduced the Fantastic Four in the MCU and they are set for their next debut in Avengers Doomsday and Marvel Studios' president has now teased us as to what's to come for the next Fantastic Four adventure.

Credit: Marvel Studios In their MCU debut, the Fantastic Four become a Fantastic Five with the arrival of Reed and Sue's son, Franklin Richards. Worries that he might not be "normal" are confirmed in Fantastic Four: First Steps when Galactus recognises that the boy can wield an unlimited energy known as the Power Cosmic (presumably because of the "cosmically compromised DNA" shared by both of his parents).