Board Thread:Movies/@comment-3048593-20170411234907/@comment-1895174-20171025225342

If Tony's a Skrull, then he's been a Skrull since The Avengers. He flew the nuke through the portal, and a Skrull came back out. But he's like a sleeper agent, so he thinks he is the real Tony Stark. The vision Scarlet Witch gave him in AoU of the Avengers dead at Thanos' feet is his subconscious brain reminding him of his mission.

I'd be furious if that happened but I could see it.