Over at the Washington Post, there is an article on the inevitability of the Superhero-Movie bubble bursting. Oddly enough, it seems to mostly be a condemnation of Warner Brothers trying to get their characters on screen when Marvel has so much charisma.
Of course we can have a pretty broad diversity of characters, but it's reasonable to ask if superhero movies will become boring. Eventually, studios will get lazy with them. I'll still watch them, but will enough butts get into seats to keep theaters full?