User blog comment:LoveWaffle/Ranking 2013's Superhero Movies/@comment-4651179-20140115001123/@comment-1895174-20140115001633

There is the whole "created demons" line.

As far as it being conclusive, you get the sense he will never put on another suit of armor again. We know he has to be in one again because Avegers: Age of Ultron is a thing that exists, and Marvel and Disney really seem to like this cash cow they've got before them.