So…. Juno Temple has been cast in the Batman movie as a “street-wise Gotham kid”.
Commissioner Gordon’s daughter was about 7 when we saw her in The Dark Knight, so it could be a slight time jump and et voila, Batgirl/Barbara.
Harley Quinn? Maybe.
There’s a part of me totally hoping for Stephanie Brown (the least douchiest character in the Batfamily). Girl Robin or Batgirl/Steph would be feckin’ awesome.