Chris Hemsworth insists he isn't leaving the MCU, but the Thor: Love and Thunder trailer has several moments that make it seem like his last Marvel movie. Arriving in spring 2019, Avengers: Endgame was arguably the defining film of the MCU so far, marking a turning point for the original six Avengers. Iron Man was killed, Captain America got old and retired, Black Widow also died and Hawkeye is mostly out of the game, leaving only Thor and the Hulk still active and available.
Even then though, it's currently unclear what Hulk/Bruce Banner is doing with most of his time, and Thor is a changed man after his arc in Avengers: Infinity War and Avengers: Endgame. In what would become an immortal moment, Thor failed to go for the head when attacking Thanos with Stormbreaker, and in his mind, it was his fault that Thanos' snap even occurred. Feeling responsible for half of life in the universe dying is a big cross to bear, and it took its toll on Thor, leaving the Asgardian wallowing in depression.
Related: Moon Knight Theory Teases Thor: Love & Thunder's God Mystery
While Thor did eventually manage to be part of the win over Thanos in Endgame, he's clearly not the same person he was before his initial failure against the Titan. Considering the aforementioned departures, the time seems right for the MCU to say goodbye to Thor, but actor Chris Hemsworth maintains he's not going anywhere. However, the teaser trailer for Thor: Love and Thunder seems to be doing its best to set the stage for Thor's exit, with the mighty God of Thunder making it clear he doesn't want to be a hero anymore, and instead wants to find himself as a man of peace.
As if that didn't seem like enough potential setup for Hemsworth's exit from the Thor role,
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