With the announcement of the cancellation of Birds of Prey and Batwing, and the upcoming debut of Grayson, it seems an appropriate moment to speculate as to the future of the Bat titles. Let's organize this by titles that may be cancelled and titles that may appear.
Titles that may be Cancelled
All the books starring Batman himself seem very safe at the moment. Batman is still above 100k, although Zero Year fatigue seems to have set in a little bit; Tec and Batman and Robin (which is what it's probably going to be going forward) are in the 40k-60k range; and Eternal will probably stabilize somewhere in the 50k-70k range. Batgirl is just above 30k. Batwoman, however, is now below 20k, while Catwoman is right at 20k and sinking. RHATO is just above 20k and will slip below the line soon if Lobdell's return does not boost sales. All three of the latter titles seem to be sliding toward cancellation in the next year if nothing changes.
Titles that may Appear
The surprise success of Harley Quinn surely must have turned some heads at DC, and (dark grumblings about Didio notwithstanding) DC really needs Grayson to be a success or they are behind the eight ball in a big way with Dick Grayson. But what else might appear in the next twelve months or so? I am going to go out on a limb and say that they are hoping to use Eternal to launch a Red Robin solo and a reinvigorated Catwoman. They may also may try a new group book to replace Birds of Prey, although I am not sure who would be in it (too many candidates, not too few). Luke Fox will probably be an occasional support character in other people's books, and I have no idea what they will do with Kate Kane. They will definitely be doing something with Harper Row, but as her becoming Robin seems unlikely that may mean a new title of some sort as well (I could see her, Aguila, and Stephanie Brown becoming a new BOP team). Jason Todd will be an enormous problem if RHATO goes under. In some ways, it's a shame they used the spy angle for Dick Grayson, as that is one of the few alternatives that comes to mind for a new direction for Jason, although I could see him doing a Philip Marlow private eye.
What does everyone else think?