At the end of Iron Man 3, didn't Stark renounce being Iron Man? (Or have I completely misinterpreted the end of that film?). I thought part of AOU would have been about him making the decision to put the suit back on but there wasn't really any mention of it.

On a side note, when Fury turns up at the end, if the ship was being manned by the SHIELD TV crew, I would've genuinely fist-bumped the sky.