The Nolan Trilogy has had one constant theme, “Why do we fall, So that we might learn to pick ourselves up.” I believe, this is important to understand as we watch trailers and speculate about what is going to happen.
It all started when Bruce fell down the well and his father calmly retrieved him. Then his parents die in front of him and he blames himself for making them leave the play early. The blame made him feel as though it was okay to take revenge, but someone beats him to it. He didn't learn to pick himself up until Ra's showed him what is worth standing for, indirectly.
The Dark Knight showed the audience that Batman could stand for justice and restore hope. He even was able to take the blame for something he didn't do to protect that hope.
Why rehash what you already know? Well, we have all seen the trailer and the poster showing the broken mask. Also, the “Legend Ends” theme is pretty ominous. I have some reasons that this may just be a slick spin to get people emotionally involved. And it's working, currently there are two trailers and a prologue and it's still over 6 months from being released. Plus, we have no idea what is going to happen in the movie.
I think it's all a ruse. Remember in Begins when Alfred gets masks and cracks one with a baseball bat. Maybe this is one of those masks, he did get 1000(?) of them. And didn't Gordon “die.” Even his wife was fooled, “playing it close to the chest.” The legend of Batman ends not Batman, but the story. It's just that in this story he has to learn to pick himself up.
BTW... I would love to see Bane break Batman's back, but he's not going to die.