To all 5th column-ites, what @impurestcheese has so graciously done is given me the reigns for all out underwater warfare. Be prepared for the next issue and make sure to bring your snorkel MWHAHAHAHAH!
She definitely won't be Batgirl. The timeline that the movie's presenting won't allow for Batgirl to still be active if Batman isn't. Either she'll just be Barbara, or she'll already be in a wheelchair and be Oracle