Avengers: Age Of Ultron - 15 Theories That Were Utter Bull
10. Thor's "Death"
The Theory: Thor would be slain and end up in Hela or Valhalla, leading up to Ragnarok in which Asgard would be powerless to defend itself without its mightiest hero.
The Supposed Evidence: The shots of Thor angrily having a bath in the first trailer seemed to suggest he was being reborn in water, and then there was the small matter of THAT mysterious woman, who many suggested was definitely Hela.
The Reality: The pool was the "water of sight", which Thor apparently needed Erik Selvig to "help" him with by standing around looking at his abs, and the mysterious woman was so mysterious she didn't even make it into the final film.
Thor survived, in other words, but was haunted by visions of Asgard's fall and was forced back to his homeland to investigate.
Would It Have Been Better? It would have made it very clear that no-one was safe, without actually killing off a character in real terms - which would have been a very Marvel thing to do - and frankly the whole Water Of Sight bit was all a bit silly.