A post-credits sequence in Spider-Man: Brand New Day has fueled theories that a multiversal version of the hero will appear in Avengers: Doomsday. The scene features a tracking app showing a Spider-Man signal traveling beyond Earth and into deep space.

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The Spidey-Tracker's journey from New York City to deep space

The post-credits sequence in Destin Daniel Cretton's Spider-Man: Brand New Day has ignited intense fan speculation regarding the character's role in the upcoming Avengers: Doomsday. As reported by the source, the scene utilizes Ned Leeds’ Spidey-Tracker app to show a Spider-Man symbol drifting away from New York City, crossing the United States, and eventually exiting Earth's atmosphere.

This cosmic trajectory suggests a narrative shift for the web-slinger. While the character has traditionally operated as a street-level hero, the movement of the signal into space hints that the Marvel Cinematic Universe (MCU) is preparing for a larger scale.. According to the source,this could mean Tom Holland's Peter Parker has been transported to a distant location, such as the rumored Battleworld.

Why 'Spider-Man Will Return' is vaguer than the Thunderbolts* tease

The ambiguity of this tease stands in stark contrast to other recent Marvel Studios projects. While Thunderbolts* and The Fantastic Four: First Steps proviided explicit confirmation that their respective heroes would appear in Avengers: Doomsday, Spider-Man: Brand New Day concludes with the simpler phrase, "Spider-Man Will Return."

This lack of a direct tie-in to the December crossover event leaves several questions unanswered. Specifically, it remains unverified whether this "return" happens within the events of Avengers: Doomsday or in a separate solo venture, a detail that the source notes is conspicuously missing compared to other reecent MCU teases.

From No Way Home to the return of Tobey Maguire and Andrew Garfield

The prospect of multiversal variants is already a proven commodity for the franchise. Spider-Man: Into the Spider-Verse normalized the concept of multiple versions of the character, such as Spider-Gwen and Spider-Ham, while Spider-Man: No Way Home successfully integrated Tobey Maguire and Andrew Garfield into the live-action MCU.

These films demonstrated that audiences are receptive to high-concept sci-fi epics involving multiple Spider-Men. Given that Avengers: Doomsday is designed as a massive crossover where universes collide, the return of Maguire or Garfield is a distinct possibility. The source notes that No Way Home remains the highest-grossing Spider-Man film to date, proving that the synergy between different cinematic eras of the character is a powerful draw for global audiences.

The possibility of Tom Holland's Peter Parker on Battleworld

While the return of legacy actors is a popular theory, the signal in the Spidey-Tracker app could represent Tom Holland's Peter Parker navigating a new reality. The source highlights that the MCU has already laid the groundwork for Earth-616 to interact with other realities, making a transition to a place like Battleworld a logical narrative step.

However, it remains unclear if the signal represents Holland's version of the character or an entirely new variant from another dimension. Because the source only reports on theories and the visual evidence of the app, the exact identity of the space-faring Spider-Man remains a mystery heading into the December release of Avengers: Doomsday.