With Batman v Superman set for release next year, you have to imagine that the comics will also feature the two heroes coming to blows around the same time. With the Man of Steel now dating Wonder Woman, perhaps it will be over the fact that it's been heavily implied that the Caped Crusader is secretly in love with Diana. They even dated for a time! That didn't work out, but they remained friends. However, depending which reality a story is set in (or animated series for that matter), it's also been implied that she's interested in him too. The most recent example of Batman's feelings came during the Forever Evil event when he was the only one able to use her lasso because of an "emotional tie" to Diana. Hmm...