I remember when Green Lantern was supposed to be the sign of the end of superhero movies. Also, one of the X-Men movies (either the third one or the Wolverine origin one, I forget which) and I'm pretty sure one of the pre-MCU Spider-Men had the starting pistol for the end of superhero cinema as well. People don't really get sick of a genre; they get sick of bad movies. And say what you will about the MCU product as a whole, there's no denying that Feige knows how to get the right people to the right projects and how to pace releases. If anyone has the standing to actually make this claim, it's him.