Thor 5 is rumored to be in development at Marvel

"I think we just had too much fun. It just became too silly," Hemsworth said of the previous movie. "It's always hard being in the center of it and having any real perspective… I love the process, it's always a ride. But you just don't know how people are going to respond."

The actor also hinted that he is open to returning to the role but does not want to overstay his welcome. Hemsworth revealed that he has no idea about what is next for his character in the MCU.

"I've got to be careful how I word that because I have no idea what's happening in the next phase," Hemsworth explained in an interview with Entertainment Weekly earlier this year. "There's always conversations, like with Extraction. Before anything is official, people are throwing around ideas. But officially, I don't know."

He adds, "I don't want to continue to do it until people are so exhausted that they roll their eyes when they see me come on the screen as that character ... If an audience wants to see it, and if there's something that we believe is exciting and fun, then great. I've loved being able to reinvent that character a few times. I don't have the answer yet, but I would love to try and [figure out] how we can do that again and keep it a little unpredictable."

Waititi recently made comments about returning for a fifth movie. The director hints that if he were to return to the film series, the next villain would be much more powerful than Ragnarök's Hela.

"What is left to do to him? It's got to be something that feels like it's carrying on with the evolution of the character, but still in a very fun way and still giving him things to come up against that feel like they're building on the obstacles that he has to overcome," the director said. "I don't think we can have a villain that's weaker than Hela. I feel like we need to step up from there and add a villain that's somehow more formidable"