I do have to say it is pretty interesting that Alfred is kind of shown to be human in this trailer whereas before he's been alluded to being just a computer program. Does this mean we might see Alfred's death in AO or maybe just that we were all lead to think he was just a smart computer like Jarvis in the Iron Man films. I think to land more of an impact it would be the death that would lead to Bruce becoming a bit darker and better tactician in the later years of the story. Then again I could be way off.
Either way, take a gander and enjoy. Not too much longer until October 25th now.