The first Avengers: Doomsday trailer has already revealed enough to spoil major plot points. While the full official trailer has yet to be released, Marvel is releasing four parts, each screened after Avatar: Fire and Ash in theaters. The first installment alone is packed with shocking twists, giving audiences an early glimpse of the story that could fundamentally shake up the Avengers’ playbook.

1. Everyone's favorite Captain returns

Peeks from the first Avengers: Doomsday 2025 teaser indicate Steve Rogers returning in a domestic setting. The footage reportedly shows Rogers riding a motorcycle to a 1950s-style suburban home, directly echoing his retired life with Peggy Carter established in Avengers: Endgame. The trailer cuts to black before on-screen text confirming his return.

“Steve Rogers will return in Avengers: Doomsday,” it said, setting the stage for his central role and reigniting debate over his involvement in the MCU timeline and potential past decisions.

Meanwhile, time travel questions dominate the narrative. The footage implies Avengers: Doomsday may address whether Steve remained in a branched timeline or the main MCU. Fan theories have suggested a causal loop, where Sam Wilson receiving the shield could already be a predestined event.

Consequences escalate with a multiversal Incursion stemming from Steve’s actions. Doctor Doom, played by Robert Downey Jr., seems intent on correcting or destroying the affected reality. Rumors hint at a Nomad Rogers persona and even villainous Captain Hydra variants, adding deliciously dangerous possibilities.

2. A new addition to the Rogers-Carter family

One of the biggest surprises from the Avengers: Doomsday teaser is not that Chris Evans returns as Steve Rogers, but that Steve now seems to have a child. The short trailer reportedly shows him cradling the youngster, hinting at a quieter life after Avengers: Endgame.

The teaser emphasizes domestic peace before multiversal chaos returns. The child is assumed to be Steve and Peggy Carter’s, born from his decision to stay in the past. Rumors suggest Doctor Doom’s hunt for out-of-timeline Variants will force Steve back into action.

At the same time, fans have spun multiple theories about the child’s identity. The most popular idea is James Rogers, drawing from comics and animation, as the son of Steve and Peggy. Others suggest the baby could signal a timeline breach, act as a Beyonder-like anomaly, or even connect to Franklin Richards’ reality-shaping potential.

The child also seems to raise the stakes for Steve personally and morally. Doctor Doom might threaten or capture the baby, forcing Steve back into battle. Some speculate a mid-movie time jump will show James as a teen, potentially teasing the 'Next Avengers' or a Young Avengers team.

3. Steve Rogers may not return as Captain America

Reports from late 2025 confirmed Chris Evans ' return in Avengers: Doomsday. The teaser shows his return, but it seems that Steve will not reclaim the Captain America mantle. Marvel has affirmed that Sam Wilson remains the MCU’s official Captain America after Captain America: Brave New World.

The first teaser, screened with Avatar: Fire and Ash, reportedly ends with a text, focusing on Steve and not Captain America.

“Steve Rogers will return,” it said, noticeably omitting his superhero title. Footage shows him contemplating his star-spangled uniform before storing it, signaling retirement from the role.

Multiple sources suggest Steve may adopt the Nomad persona, drawing from comic lore when he operated independently of the U.S. government. This aligns with prior Infinity War hints and positions Steve for a personal, untethered mission in the MCU.

4. Steve might return as a new superhero

As mentioned, Steve Rogers is seen storing his uniform, quietly retiring from the Captain America mantle. His return in Avengers: Doomsday promises a more personal mission, separate from Sam Wilson’s established role.

Marketing continues this distinction, emphasizing Steve's return instead of Captain America. Sources suggest he may operate independently, much like Infinity War’s version, confronting multiversal threats without reclaiming the official shield or interfering with Sam Wilson’s heroics.

5. The Doomsday countdown

The Avengers: Doomsday teaser ends with a literal doomsday clock counting down to an unspecified 2026 date. This visual sets an urgent tone, hinting at multiversal collapse, an impending Incursion, or Doctor Doom’s imminent arrival.

Beyond suspense, the doomsday clock reinforces stakes for both heroes and villains. Time itself becomes an adversary, positioning Avengers: Doomsday as a taut thriller where pacing, multiversal peril, and character arcs intertwine in real time.

Which of these spoilers from the Avengers: Doomsday's leaked trailers did you find the most surprising? Let us know in the comments!

Written by

Iffat Siddiqui

Edited by

Itti Mahajan