I haven't been an avid follower of Bendis' Avengers in quite some time, but I read that Wonder Man more or less said that he was just a Wanda-construct and then disappeared. So the implication is that Wanda never had the power to bring people back from the dead, and was instead just making walking/talking facsmililies. So if this is true of Wonder Man (who Wanda "resurrected"), shouldn't it also be true of Hawkeye?