Batgirl's the main protagonist in the upcoming Batman: Arkham Knight Batgirl: A Matter of Family DLC and Warner Bros. has a trailer for you to show her in her fighting glory.
What's really cool is to see the return of Mark Hamill as the Joker in this trailer. Harley Quinn's also rocking her old costume as well and Robin will be your partner in some missions on this one.
I'm currently finishing up my review of Arkham Knight now, but it's good to see Barbara Gordon taking out the bad guys before she was forced into her Oracle role.