You saw where it ended. remember the fun video from New York? Loki. Thor took him back to be judged for his crimes back in Asgard. super weird.

[ but still the best solution. tony never wanted loki to stay on earth. ]

so he wears a cape, yeah? and these horns whenever he really feels like he wants to make an entrance and then there's all that medieval talk - thou shalt suffer my wrath and all of that. guy's a piece of work.