Huh, if Barbara really has stolen Wendy's spine (...yeah) in order to be Batgirl, can we start presuming that she's going to turn into some sort of organ/attribute stealing character?
Like, "Hm, I'm now kind of old to be Batgirl now... I'll steal Lian Harper's youth! She's been four years old for the past ten or so years, she won't mind! And I'll take Power-Girl's boobs too, just to mess with her!"