Well let me put it this way-
Bruce Wayne is batman. That who he has been forever. its never been different. Grayson for instance, might be A batman or a temporary substitute for Batman, but Bruce Wayne is THE Batman.
What is Superman wasnt Clark Kent, or spiderman wasnt ptere parker? that who they are and that who they should stay. Thats the way they got popular and famous. That is the way everyone knows them.
Heres a question thats come up pretty late in the game but I've only recently got around to reading RIP. One thing I couldnt help but notice was the fact that the Joker's skin wasn't exactly chalk white anymore? I gotta be honest...I'm a little confused? Is this part of the whole plastic surgery thing in Batman 663? Because I didnt bother finishing that issue.