Justice League will feature a more "comic book" Batman,

I always thought of Batman as a sad, angry man. His parents were killed right in front of him. He trained for years to fight crime and take revenge on the kind of people that mimic the man that killed his parents.

As I heard it put in a review on BvS, there is only one thing that separates Batman from being a protective vigilante and then turning into a murdering psychopath: his decision to refrain from killing at all costs.

Otherwise, he attacks, hunts, and locks up criminal after criminal because he wants to protect his city from the same tragedy that hit him as a child. It takes discipline for Batman not to kill.

I'd say that he is a very angry man. That encompasses Nolan's trilogy, most of Burton's two films, the Arkham video game series, and most of the graphic novels/comics.