The Marvel Cinematic Universe continues to spin its web of secrets, keeping fans on edge and theories in overdrive. Amid the chaos, Avengers: Doomsday rises as the next chapter, marking the fifth Avengers film and the 39th MCU entry, following the seismic events of Endgame. Directed by Anthony and Joe Russo, with a script by Michael Waldron and Stephen McFeely, the project remains tightly under wraps. Yet Robert Downey Jr. refuses silence, tossing just enough fuel to keep the fan frenzy blazing.

Robert Downey Jr. has just thrown Marvel fans into full-blown detective mode after posting a cryptic video from the set of Avengers: Doomsday on Instagram. The clip features glimpses of Secret Wars and Iron Man: Legacy of Doom comics, instantly igniting a frenzy of speculation. While Marvel remains tight-lipped, Downey Jr. seems to be playing his own game, dropping subtle hints that have viewers dissecting every frame in search of clues about Iron Man's possible return.

Before unleashing the comic-filled chaos, Robert Downey Jr. stirred the pot with another cryptic Instagram teaser. In the video, he is seen vibing to music while flipping through a copy of The West Coast Avengers #35 from 1988. Front and center on the cover? None other than Doctor Doom. That single image was enough to send fans spiraling into speculation. With theories now boiling over, the comic tease has left Marvel loyalists wondering what Avengers: Doomsday might truly have in store.

Did Marvel Just Drop a 'Doomsday' Bomb in the 'Fantastic Four' Post-Credits Scene? Here’s What Could Be Coming

Fans are spiraling into multiversal mayhem, dissecting every frame of Robert Downey Jr.'s post and wondering if Avengers: Doomsday just got its biggest clue yet.

Fans are flooding the comments section on X, completely consumed by Robert Downey Jr.’s cryptic post. While excitement brews over his appearance on the Avengers: Doomsday set, others are spiraling into wild speculation, could this be teasing an Iron Man versus Doctor Doom clash? Some are even questioning if Downey Jr. is set to reprise his iconic role or perhaps take on something entirely new. Theories about actors playing multiple versions of characters are spreading like wildfire.

Others simply point out how Robert Downey Jr. continues to tease fans and suggest that he might be playing multiple roles in Avengers: Doomsday.

As curiosity swells over Ryan Reynolds' possible involvement in Avengers: Doomsday, fans are equally fixated on decoding every subtle hint dropped by Robert Downey Jr. The internet's reaction to his posts has turned into a storm of theories and speculation, all fueled by the growing anticipation for the film. With stars like Chris Hemsworth, Vanessa Kirby, Anthony Mackie, and Sebastian Stan confirmed, the excitement surrounding the next Avengers installment shows no signs of slowing down, it only continues to intensify.

'Avengers: Doomsday' to Set Space at a Prime 'Loki' Series Location for a Showdown: Here’s What We Know

What do you think about Robert Downey Jr.'s tease? Let us know in the comments below.