I'll wait and see. Nolan deserves some trust based on what he's done so far.
I'm iffy about how he might end it. I'd rather he didn't kill off Batman or have him publicly unmasked. Maybe Batman faking his death or retiring because things have improved and he doesn't feel needed anymore. That would be somewhat open ended for whoever follows and doesn't actually have to be connected to this trilogy.
I'm really intrigued to see what he has in mind for Superman.