Fan speculation swirls around Spider-Man: Brand New Day, with rumors ranging from Jean Grey to Hulk and the film’s villain

Online fandom communities are trading a fresh set of theories about Spider-Man: Brand New Day, including speculation about whether X-Men character Jean Grey will show up in what fans describe as the franchise’s fourth Spider-Man film, and whether other related characters such as Spider-Girl could be involved, according to an account published by The Guardian on June 26, 2026.

The article describes how these rumors spread across social media and fan forums, often tying together earlier Marvel footage, character histories from comics, and interpretations of promotional material. It says the conversation includes questions that go beyond casting, with fans also debating which Hulk version might appear and who the true villain will be in the new movie.

Beyond the specific character rumors, The Guardian’s report argues that the timing and tone of Marvel’s promotional rollout may have contributed to the intensity of the speculation. It points to a period when audiences say trailers stopped being only standard hype and began to feel, to some viewers, like they were setting up the same kind of “conspiracy” discussions that dominate the internet.

The Guardian frames the situation as an attempt to “unweave” competing claims rather than confirm any particular plot point, emphasizing that no public evidence in the report verifies the rumors as fact. It also notes that there is no clear way to establish when Marvel’s marketing changed in a way that would reliably produce these kinds of discussions among fans, suggesting the shift is interpretive and audience-driven.

The report’s central throughline is that fan speculation is now intertwined with Marvel’s release-cycle attention, creating a feedback loop where viewers scrutinize details, compare them to franchise lore, and amplify new interpretations. The article treats the rumors as part of a broader culture phenomenon, with fans increasingly turning trailer moments into investigative threads.

As of the report’s publication date, the question of which characters will actually appear in Spider-Man: Brand New Day remains unresolved in official announcements cited by the reporting. The next confirmations for audiences will likely come from official Marvel casting announcements, production updates, or the film’s released promotional materials closer to its premiere, which would either narrow the current speculation or replace it with confirmed details.