Gail Simone's blog post indicates that theory won't be borne out:
This is classic Barbara as she was originally conceived, with a few big surprises. It’s a bit of a shock, to be sure, but we’re doing everything we can to be respectful to this character’s amazing legacy, while presenting something thrilling that a generation of comics readers will be experiencing for the first time…
…Barbara Gordon leaping, fighting, and swinging over Gotham. Now, when citizens of that city look up, they are going to see BATGIRL.
Mad respect for Simone, but how is Barbara Gordon any more Batgirl than Stephanie Brown (or Cassie Cain for that matter)?
She's the one people sorta remember.