There wasn't much Batman related news on Day 1. Just the announcement that Nightwing will be a playable character in Injustice: Gods Among Us.
http://www.youtube.com/watch?v=hAH8GNbKV7w
Gamespot's live coverage of Day 2 kicks off in about four hours. Hopefully there'll be some interesting Bat-news.
Some interesting information was revealed about Beware the Batman at the Comic-Con DC Nation panel on Sunday. IGN posted an interview with show producers Glen Murakami and Mitch Watson. It's worth a read:
http://uk.ign.com/articles/2012/07/16/comic-con-beware-the-batman-will-focus-on-detective-skills-and-leave-out-the-usual-villains-like-joker
I'm all in favour of using the more obscure villains, and I like the sound of the detective angle. I'm starting to look forward to this show.