A fan theory claims that even after the events of Spider-Man: No Way Home, Hulk and Wong might still remember Peter Parker. Spider-Man: No Way Home unravels a whirlwind of multiverse possibilities after Doctor Strange casts a spell to make everyone forget Peter Parker. When this whirlwind spirals into chaos and villains from multiple Spider-Man universes show up, Peter does what he does best in every universe — he ensures that "with great power, he helms great responsibility." Determined to overturn the events of Spider-Man: No Way Home, Parker eventually surrenders and requests Doctor Strange to erase him from everyone's memory.
Spider-Man: No Way Home's bittersweet ending serves as a rite of passage for Marvel Cinematic Universe's Peter Parker, where he learns what it truly means to be a superhero. All ends well, but as the trailers of Doctor Strange in the Multiverse of Madness and the post-credits scene of Spider-Man: No Way Home suggest, the consequences of opening the floodgates of the multiverse are far from over. While some are busy theorizing about all the possible villains and superheroes that could appear in Doctor Strange in the Multiverse of Madness, others can't help but wonder how the multiversal chaos will further escalate into a frenzy.
Out of all the plausible theories and speculations, one (via Reddit) suggests that not everyone has forgotten Parker. According to the theory, Wong could be one exception to the spell because in the opening arc of Spider-Man: No Way Home, right before Doctor Strange casts the spell, Wong warns him, "Just leave me out of this." This suggests that Strange might have excluded Wong from the film's climactic spell, leaving his memory unscathed. An intriguing scene from the initial moments of Spider-Man: No Way Home further cements this theory (via Reddit). After casting the first spell, Doctor Strange claims that Peter Parker broke his spell "six times." However, Parker disagrees and corrects him by saying, "...five times." Many believe that Doctor Strange's claim was no miscalculation, and instead, he probably excluded Wong during one of the six alterations of the spell.
Other theories (via Reddit) harken back to the comic books in which during a similar series of events, Banner forgot Peter Parker, but Hulk was immune to the spell. However, there are several caveats to this theory because of the complexities and nuances surrounding Hulk and Banner's identities. After the events of Avengers: Endgame and Shang-Chi and The Legend of The Ten Rings' post-credits scene, it is debatable whether Hulk and Banner are the same person.
Regardless of how these theories traverse into MCU's future projects, they show the plethora of possibilities that Spider-Man: No Way Home has opened up. Undoubtedly, Doctor Strange in the Multiverse of Madness will further grease the wheels of these exciting developments and give fans a whole new torrent of theories and prospects to ponder over. Given the scalability of all that could potentially happen in Doctor Strange in the Multiverse of Madness after Spider-Man: No Way Home's events, it isn't surprising that Elizabeth Olsen admitted that (via Digital Spy) "It's a bonkers movie."