Rotating creative teams on weeklies are just dumb. 52 was a one time thing. If they don't have a consistent creative team, the books will just fail like ACW. And the ASM weekly Spider-Man and 52 were both done by Stephen Wacker. And he isn't around. DC's weekly attempts without him have all turned out to be dazzling failures.
I'm guessing titles like Batwing or even Batgirl get cancelled, and their stories shifted to some new Bat-family book that will read like an anthology.
I doubt Batgirl will ever get cancelled by editorial barring terrible sales now that Simone has got a bunch of morons on tumblr to show DC that she has "fans". Don't count on Red Lanterns either since the GL family of titles is still under Geoff Johns guidance and protection. So it's going to be stuff from the Dark, Edge and Superman lines then.