Spider-Man: Brand New Day theory changes entire post credit scene and Avengers

Theory Briefing

• A fan theory reframes Brand New Day's post-credits scene as a deliberate setup for a broader Avengers storyline, not a standalone tease.
• The theory suggests a detail in the scene carries implications that would retroactively change how earlier MCU moments are read.
• Brand New Day's title itself — referencing a landmark Spider-Man comic reset — fuels speculation that a major status-quo shift is being signalled.