I'm still alive. This is just a flash fiction for a hypothetical scene involving Coulson's inevitable resurrection.
Well, they did say he was coming back for the SHIELD series.
Anyway, I think the man in the IM3 trailer with the Captain America tattoo is actually Coulson. He died, Mandarin resurrected him and then brainwashed him to fight against Tony Stark since he's a powerful psychological weapon.
Marvel owns everyone in here.