It took almost three years, but Marvel finally confirmed who the MCU’s next Thanos is. After the end of the Infinity Saga, which concluded with the two-part finale Avengers: Infinity War and Avengers: Endgame, the MCU found itself with the difficult mission of following up what appeared to be the saga’s peak. Obviously, there were still several Marvel characters and sagas from which Marvel Studios could choose, but the MCU Phase 4's future direction remained ambiguous in terms of its selection of adapted materials and the identity of its next massive threat.
The MCU’s multiverse has been a central element throughout several Marvel Phase 4 movies and shows, which suggested that Marvel’s next Endgame would be something in the vein of Secret Wars. However, the MCU also introduced Kang, or at least a variant of him, very early in Phase 4 through the Loki series. In the comics, Kang has more to do with time travel than with the multiverse, which raised the question of who or what exactly the next big threat would be. There were also setups for a possible Young Avengers project, as well as steps made toward a now-confirmed Thunderbolts movie.
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After expanding the universe with the MCU Phase 4 movies and shows, Marvel confirmed that Kang is the MCU’s next Thanos and that he'll be the main villain in both Ant-Man and Wasp: Quantumania, the first movie in the MCU Phase 5, and Avengers 5, which is now officially titled Avengers: The Kang Dynasty. No other Marvel character has been the main villain in two movies from two different phases, showing how pivotal Kang’s role in the MCU will be. Jonathan Majors, who plays Kang in the MCU, also played the Kang variant
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