BvS wasn't going to revitalize anything...BvS was going to make money from the get go because it's a movie that contains Batman and Superman. As long as you're willing to change it up, be unique, and go outside the box (successfully) then superhero movies will continue to be a success. Deadpool proved that. Ant-Man proved that. Gaurdians of the Galaxy proved that. Those were movies that were different in their own ways and changed up the comic book/super hero genre a bit. The question then becomes is how do the movies I've listed sustain that freshness in their sequels and how do new super heroes being introduced to us (like Wonder Woman, Black Panther, Dr. Strange) bring their own uniqueness to the table.