The concept is inherently flawed for the silver screen. They're not going to turn good guys into bad guys .... they wouldn't even do it with the Hulk when the idea was first discussed about him being a villain in the Avengers. Won't happen. Don't know why anyone discusses it. They're setting up franchises to have the heroes be the heroes. What in the world makes anyone think we'll get a Watchmen-esque kind of property out of the way Feige is running these Marvel movies?