In a recent episode of the podcast "SuperTheories," host Swapnil delves into several intriguing theories surrounding Marvel Cinematic Universe (MCU) Phase 6. Swapnil discusses seven notable theories, each offering unique insights into the upcoming phase of the MCU.

The first theory suggests that the Fantastic Four, whose integration into the MCU has been anticipated since Disney's acquisition of 21st Century Fox, might already exist within the MCU but are trapped somewhere, potentially the Negative Zone. This approach would bypass the need for retelling their origin story and explain their absence during previous events.

Another compelling theory proposes that "Avengers: Secret Wars," a major event in Phase 6, could see the return of the original Avengers, including characters like Tony Stark/Iron Man. Given the multiverse concept, this film could potentially introduce a plethora of characters, providing an opportunity for legacy Marvel heroes to reappear.

Swapnil also touches on the idea that "Spider-Man 4," slated for Phase 6, will continue the story of Tom Holland's Spider-Man and might incorporate not only MCU's Peter Parker but also various Spider-Verse counterparts, expanding the scope of the Spider-Verse within the MCU.

Furthermore, the possibility of "Avengers: The Kang Dynasty" being a Young Avengers movie is discussed, with the younger heroes taking on a prominent role in the face of a Kang-related threat. This speculation aligns with the MCU's previous hints at a Young Avengers project.

Swapnil suggests that Tobey Maguire and Andrew Garfield could return as Spider-Man in Phase 6, particularly in "Avengers: Secret Wars." The success of "Spider-Man: No Way Home" demonstrated the audience's interest in multiverse-related stories.

The introduction of Miles Morales in the MCU's Phase 6 is also proposed, either through "Spider-Man 4" or "Avengers: Secret Wars." With the aging of Tom Holland's Spider-Man, this presents an opportune moment to introduce a new Spider-Man character.

The theory that "Doctor Strange in the Multiverse of Madness" will contribute to the events of Phase 6 is explored, indicating that Doctor Strange will likely play a significant role in the Multiverse Saga's resolution.

Lastly, the idea that "Avengers: Secret Wars" could serve as a soft reboot for the MCU is discussed. Drawing parallels to the comic book event, this theory suggests that the film's exploration of time travel and the multiverse could allow the MCU to reorganize its timeline and potentially establish a new MCU Prime Timeline, reshaping the universe for Phase 7.

Throughout the podcast episode, Swapnil engages with these theories, exploring their plausibility and potential impact on the MCU's narrative. As Phase 6 approaches, fans are eagerly anticipating how these theories might shape the future of the MCU.