Yes, it's part of the tools used in one style that Wayne mastered parts of to create his own fighting style.
Bale said in an interview, "it's part of the fighting style called Keysi... It's a very brutal fighting style and it fits really well with the batsuit, and particularly with the ears and everything, just the way it goes. And it's very savage, very fierce, and I had to learn that. We have a lot of different fight sequences. I did learn every single fight sequence that's in the movie."
Sidenote, I really hope they keep the romance to a min. Lets hope we get into Bruce's mind and his keen detective skills, that IS what he considers himself, first and foremost. The worlds BEST detective.
We know for this film to expect martial arts emphasis w/the training and possibly overkill against regular goons, but again Ra's it should be nice. Since he is a metahuman.
Lastly, I hope the next film will include Lady Shiva "the worlds DEADLIEST barehanded fighter in the DCU".