What are the Avengers-level threats in the MCU’s Phase 4? This phase of the MCU has already seen the release of five of the ten films that were originally announced, as well as a similar number of episodes of the accompanying Disney+ series. Despite a few hints, the franchise has kept fans guessing as to where it might go. We can assume that after the release of The Marvels in July of 2023, there will be a massive crossover featuring all of the MCU’s superheroes, possibly including the Fantastic Four, for the first time.
Phase Four has already used several Avengers-level threats that could serve as a universe-shattering danger to bring together a disparate group of heroes in the final chapter. but that still leaves a lot of potential directions for the franchise. There’s still time for a new villain to emerge. Villains like Loki and Ultron in previous Phases’ finales arrived relatively late. However, the latest chapter already has more than enough potential threats to make for an appropriately epic conclusion. Let’s take a look at some of the potential Avengers-level threats that have surfaced so far in Phase Four.
A major player in Phase Four, the Scarlet Witch stars in her own series and will play a significant role in the upcoming sequel to “Doctor Strange.” In that time, the threat she posed to the entire universe grew to the point where it could no longer be ignored. Wanda’s whereabouts are unknown following the events of Doctor Strange in the Multiverse of Madness. but with one confirmed Wanda variant and countless others available as replacements, bringing her back may be easier than it appears. Also, the return of Chthon and Mephisto due to stories like “House of M” suggests that Wanda could be the final straw in wrapping up Phase Four.
Following the Battle of New York in Avengers: Endgame, Loki’s paradox-inducing escape triggered the creation of the multiverse. As a result of this, the Time Variance Authority was discovered, and variants like Sylvie were created, as well as the murder of He Who Remains. Both Spider-Man: No Way Home and The Multiverse of Madness featured enormous dangers as a result of this. Further incursions could lead to a new villain, but they could also pave the way for a film adaptation of a comic book series like Secret Wars.
He also provided a more particular villain to represent as the Big Bad for this part of the MCU’s timeline, which was provided by Loki The first season of Loki ended with Kang the Conqueror — a ripoff of Nathaniel Richards — in charge of the TVA. And with He Who Remains warning of “worse” versions of himself, he’s the most likely crossover-worthy foe currently in the MCU. Kang has a long history with both the Fantastic Four and the Avengers, which provides the writers with a wealth of comic book storylines.
At the end of Eternals, a Celestial surprised the MCU by making an appearance. It ended with all the members of the titular team, either on another planet or facing the music, with Arishem, who was the only one left on Earth. These characters will be linked to some of the more out-of-the-way characters in the MCU’s Phase Four finale, including but not limited to, the Guardians of the Galaxy. Using another Celestial or even a non-Celestial figure like Galactus as a threat, the MCU could justify a massive hero team-up while also facilitating the appearance of the Fantastic Four in the MCU.
For the most part, we’re expecting to see the shape-shifting aliens from Captain Marvel make another appearance in the upcoming Secret Invasion series. It is possible that the events of the Secret Invasion could lead to a far greater cosmic threat. This could easily lead from Secret Invasion to a much wider battle because the Talos-led benevolent Skrull faction may be a minority among their people.