Bruce Wayne will either retire / be forced to retire / go into hiding. He will be replaced by Dick Grayson, the first Robin, currently known as Nightwing. In the comics, Bruce Wayne is now in his early 40s, the first Robin, Dick Grayson is in his mid-to-late 20s and the current Robin, Tim Drake is about 15. Both Bruce Wayne and Dick Grayson became superheroes after they watched their parents being killed by criminals (Bruce's by a mugger, Dick's by the mob). Tim's parents have been killed since he became Robin, and he has now been officially adopted by Bruce Wayne. Also of note is that this month's issues of Nightwing and Robin comics are going to be their last (so one of them will definitely become Batman for the forseeable future, until the inevitable return of Bruce Wayne).
Both Bruce Wayne and Dick Grayson became superheroes after they watched their parents being killed by criminals (Bruce's by a mugger, Dick's by the mob). Tim's parents have been killed since he became Robin, and he has now been officially adopted by Bruce Wayne.
Also of note is that this month's issues of Nightwing and Robin comics are going to be their last (so one of them will definitely become Batman for the forseeable future, until the inevitable return of Bruce Wayne).