This is in reply to Spielberg's recent comments. And for everyone that is too lazy to watch the video:
"I certainly think that given the fact that technology has finally advanced, they’re always going to be looking for other films to match their technological accomplishments. Any film that can incorporate these larger-than-life characters and fantastical locations and plots, the technology wants to prove they can do it so whether it’s superhero film or fantasy in general, that’s going to surge for a while.
In terms of superhero in general, existing properties that we know and love, it’s going to be a matter of the tone they strike. You could look at Jason Bourne as a superhero. You could take any superhero movie and if you ground it enough, if you make it real enough—that’s what I think [Captain America: The Winter Soldier directors Joe and Anthony Russo] do really well. Certain superhero movies feel like “superhero movies.” Russo movies almost feel like human stories with a little bit of superhero sprinkled in. So you might get exhausted of the larger-than-life powers I suppose, but as long as the filmmakers keep on reinventing the flavor and the approach and the tone, audiences are going to still go."
SOURCE