I think he will return this summer and it will be from an aftermath of Blackest Night, from the grave robbery that happened at the beginning. I just hope that we get stories from where he is at, since he is not dead. Who would not like to see Batman fighting dinosaurs and try to find a way to travel through time to get back. The return seems like it will happen in Red Robin series. If you are not reading Red Robin, read it!! It is a great series. It will not happen until the current Batman (Dick Grayson) will stops Black Mask from his current plan.