Out of all the upcoming movies, I can see Batman V Superman getting pretty close. If WB has another marketing campaign as good as the Dark Knight, it could very well top it. It's Batman and Superman in the same movie and from all the positive reactions, people have been waiting for and are ready for another Batman.
I think WB is in good hands. The new CEO is actually doing something with their DC properties and that's a GOOD thing. They're TV slate of super heroes and vertigo projects is also nice. So far, the announcement of David Ayer (a pretty talented director in his own right) being attached to Suicide Squad is a step in the right direction.
BKB shouldn't have doubted the most recognizable super hero in the WORLD! Batman fills the second spot, so now you know when the two come together, EXPECT something BIG.