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Credit: Inside the MagicFor years, Marvel fans have wondered if Tobey Maguire would swing back into the Marvel Cinematic Universe after his unforgettable return alongside Tom Holland and Andrew Garfield in Spider-Man: No Way Home (2021). Every new rumor, casting report, or cryptic Marvel tease has only fueled that conversation.
Now, Spider-Man: Brand New Day may have given fans another reason to believe there’s more to come.
The movie’s final moments include a post-credits sequence that has already sparked countless theories online. Marvel doesn’t spell out exactly what viewers are seeing, but the mysterious scene has prompted plenty of discussion about what it could mean for the future of Spider-Man in the MCU. And with Avengers: Doomsday looming on the horizon, some fans think the timing is far from accidental.
Spider-Man’s New Tracker Plays a Bigger Role Than Expected
Before the credits roll, Spider-Man: Brand New Day introduces a surprisingly important piece of technology through Ned Leeds.
Although Doctor Strange’s spell erased Peter Parker from everyone’s memory, Ned still remembers Spider-Man himself. Determined to thank the hero who repeatedly saved him and his friends, Ned begins searching for the wall-crawler without realizing the person behind the mask is someone he once knew.
Whether that’s simply Ned following his instincts or fragments of his erased memories beginning to return remains unclear. The movie’s emotional reunion between Peter and Ned suggests there could be more happening beneath the surface.
As part of his search, Ned develops a Spider-Tracker app while studying at MIT. The pixel-style program allows users to report Spider-Man sightings, instantly notifying everyone who has downloaded it whenever the hero appears.
Throughout the film, the tracker pops up in several fun moments.
The Post-Credits Scene Raises a Major Question
That same Spider-Tracker becomes the centerpiece of the movie’s post-credits scene.
The sequence begins with a vertical screen recording of the app. Its colorful 8-bit map initially focuses on New York City, where a red Spider-Man marker appears to identify Peter’s location.
Suddenly, the app begins issuing another alert.
Ned’s recorded voice announces there’s a “new Spider-Man sighting, location unknown.” As the notification continues, the map rapidly zooms farther and farther away until the entire Earth comes into view. Moments later, the camera pushes even deeper into space.
Then things become much stranger.
A pair of visual glitches briefly flickers across the screen before another identical Spider-Man marker suddenly appears somewhere in the seemingly endless darkness of space. Ned’s voice then calmly declares, “Location found.”
The scene ends shortly before Marvel delivers its familiar promise that “Spider-Man will return.”
Taken together, those final moments have left fans trying to determine exactly which Spider-Man Marvel may be talking about.
Why Tobey Maguire Has Become the Biggest Theory
One of the most popular explanations centers on Tobey Maguire.
Many fans believe the mysterious glitches weren’t random visual effects at all. Instead, they think the Spider-Tracker briefly locked onto another Spider-Man existing somewhere else in the Multiverse.
Under that theory, the app initially tracks Tom Holland’s Peter Parker before unexpectedly jumping across realities. The second Spider-Man marker doesn’t appear somewhere else on Earth—it appears impossibly far away, suggesting the tracker may have detected another universe altogether.
That possibility immediately brought Maguire back into the conversation.
Rumors have continued for months that the actor could return for Avengers: Doomsday, making the timing especially interesting. Marvel also never specifies exactly which Spider-Man will return during the closing title card.
That wording stands out because several recent MCU films have ended by confirming future appearances for characters, including the Thunderbolts, the Fantastic Four, Thor, and Star-Lord. If Marvel intentionally kept Spider-Man’s identity vague, some fans believe it’s because the studio doesn’t want to reveal whether Holland, Maguire, or perhaps multiple Spider-Men will appear in the next Avengers event.
The London Reports Keep Fueling Speculation
The Maguire theory has also gained traction due to reports about the production of Avengers: Doomsday.
Some fans claimed they spotted Tobey Maguire in London while Marvel’s cast and crew were filming the upcoming crossover. Those reports have never been officially confirmed, and Marvel has not announced Maguire as part of the movie’s cast.
Still, Marvel has successfully hidden major casting surprises before. Both Maguire and Andrew Garfield famously denied their involvement in Spider-Man: No Way Home until audiences finally saw them on screen.
That history makes many fans hesitant to dismiss the possibility entirely.
There Are Other Explanations
Of course, Tobey Maguire isn’t the only answer.
The post-credits scene could simply be teasing Tom Holland’s own future adventures. If Peter Parker heads into space during Avengers: Doomsday or a future Spider-Man movie, the tracker could eventually locate him somewhere beyond Earth.
The mysterious glitches may have nothing to do with alternate realities and instead serve as a visual hint that Spider-Man’s next mission reaches far beyond New York.
That’s a much simpler explanation, even if it isn’t quite as exciting for longtime fans hoping to see another Multiverse reunion.
Could Tom Holland Be the One Crossing Universes?
Another popular theory flips the entire idea on its head.
Instead of another Spider-Man entering the MCU, some fans believe Tom Holland’s Peter Parker could be the one traveling into another reality.
If that’s the case, the tracker isn’t discovering someone else at all. It follows Holland as he crosses between universes, causing the strange glitches before locating him in a completely different reality.
Some fans have even connected that possibility to Miles Morales. While Marvel hasn’t officially announced when Miles will arrive in the live-action MCU, many viewers believe another universe could provide the perfect place for Holland’s Peter to finally meet the next Spider-Man.
Marvel Left Plenty of Room for Theories
Marvel clearly knew this post-credits scene would get people talking.
Whether the glitches point toward Tobey Maguire, Tom Holland’s next adventure, another universe, or something entirely different, the sequence leaves plenty of questions unanswered. With Avengers: Doomsday expected to continue exploring the Multiverse, fans likely won’t have to wait too long before learning what that mysterious Spider-Man marker really meant.
Until then, the debate continues—and that’s probably exactly what Marvel wanted.
