Ya know what'd be grand? The title changing from Batgirl to Batgirls.
Cass, Oracle, Steph, Squire, Huntress, Onyx (yeah, remember her?) and basically every available Bat-female in one massive team book. There've been several decent essays regarding the split between the Batboys and the Batgirls, so why not play off it in full? Hell, other low-powered dark ladies like Katana, Ravager and, hell, Zatanna and even Empress could guest star regularly!
And maybe Black Canary could stop buy and get her awesome back.
Sure, it'd be Birds of Prey 2.0, but is that such a bad thing?