Board Thread:General Discussion/@comment-11588183-20150501071246/@comment-1298029-20150504234243

Alientraveller wrote: Well FortressMaximus pointed many fans have theorized it. In any case Marvel will likely introduce the Soul and Time Stones in Doctor Strange, GOTG2 and/or Ragnarok, unless they leave one to Infinity War Part 1. There's precedents for time travel in Captain America and Black Panther stories but I think Marvel wants to keep them grounded, hence why stones weren't introduced in Iron Man 3 or Winter Soldier.

I suppose Thor's mushroom trip in AoU could be interpreted to the effect that Asgard may be facing some sort of cataclysm. It's also interesting that Thor's vision seems to have been the only one not to do with backstory or known issues (Tony's was more or less an alternate past that never happened, but we know from IM3 that he had issues about the Battle of NY). It was never mentioned that Thor would be afraid of failing Asgard (he was reluctant to rule, but this didn't really look like the kind of thing that comes from bad leadership), and while he might conceivably have issues with being away from Asgard to help out on Earth for an extended period when, as its greatest warrior and prince, he probably should be in charge of home base defense instead, he was portrayed as cool with his choice as of Thor 2.

Also, he was the only non-human affected by Scarlet Witch's bad juju (he also was the only one who was apparently aware of what he was experiencing), so it might've actually done something else for him, like shown him some actual possible future instead of a memory or fabrication.