Obviously there's a lot of speculation as to how Clark Gregg's character Agent Coulson comes back to life since he was killed by Loki in The Avengers. I was just assuming that Nick Fury faked his death in order to inspire The Avengers to band together and, well, avenge him. Although as it as been said, Coulson does die on screen in the film so audiences may feel duped if this turns out to be the case (although for me personally it seems to be the only logical, even if it is a little boring, explanation).
Clark Gregg himself said about his return that: "When Joss described to me the mystery that takes place in Marvel's Agents of S.H.I.E.L.D.and the complexity and the unanswered questions about Phil Coulson standing there trying to deal with this, I found it so fascinating and so true to the world of the comics and mythology in general as I understand them that I was immediately in."
Does anyone else have any theories on how the writers are planning to explain his resurrection?