From DC's Batman panel happening right now at Denver Comic Con, one fan asked why Oracle was "taken away" and turned back into Batgirl in the New 52, by removing her diversity as a handicapped person. Especially when she was previously very active and beloved.
DC reps said that it was a valid question and that the New 52 was a supposed to be a new start, and it was a risk. They didn't intend to remove diversity, and there will be more coming up. As Jeff King said yesterday, post Convergence, "all characters are on the table" and that is going to "bring about an ending that Oracle fans have always wanted", apparently.
I have no idea… yet.