Where is Thanos at the end of the Avengers: Infinity War...since it's apparently not Titan?
It's his "whatever place" according to this interview. And it's not Titan.
So, at the end of the movie, what is this planet that Thanos is on?
Anthony Russo: Oh, the new planet?
Yes. He seems very content.
Joe Russo: It’s his whatever place that he goes.
Is that his house?
Anthony Russo: He’s like a holy warrior. Once he puts his armor down in that movie he becomes like a holy warrior and this is his resting place for him. He says in the film he’s just going to sit and watch the sunrise.
Joe Russo: He accomplished his mission.
So at that point he’s not anywhere weird or inside the Soul Stone or anything?
Joe Russo: No, no.