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3. Korg, Valkyrie and Company
The Russo Brothers are the guys who directed both Infinity War and Endgame, so if anybody is qualified to give us clues about Tony Stark’s fate, it’s them. They’ve confirmed that both Korg (Taika Waititi) and Valkyrie (Tessa Thompson) survived the events of Thor: Ragnarok. Presumably, they’ve since set out no a mission of their own. Once that’s over and they chart a course back to Midgard, aka Earth, which is where Thor told them they’d establish a new Asgard, they might come across Tony’s ship and save him.
Personally, I think this is one of the more efficient theories, as it collapse the storylines of these characters together and make them easier to manage. Endgame has a huge case; best to consolidate where we can.
