I hope they do fight scenes between Batman and a crowd of bad guys really well. Most fight scenes in a lot of movies between one guy and bunch feel so artificial and over-choreographed.
And even in Watchmen- I dug the fight scenes, but even in those they look like one man goes forward and the rest kind of just watch from the side. Granted, I whole heartedly believe that they will exceed Nolan's fight scenes.
Trigger a temporary blinding device? Bad guys are blinded at different levels due to proximity and therefore they're coming at him at different times. And also gives a more grounded credibility to why they call him the Batman.