There's a great deal of speculation regarding the ultimate fate of Batman/Bruce Wayne in the forthcoming The Dark Knight Rises.
The promos themselves play on the idea "the legend ends" and Nolan is finishing off his trilogy with a sense of finality.
This could mean that Bruce Wayne finally accepts his role as Batman without any remaining reservation, that he finally becomes the Batman of the comics.
Yet there is also a lot of speculation that Bruce Wayne/Batman is finally killed and someone else might take the role of Batman.
Personally I'm really looking forward to this film after Nolan has done a damned good job with the previous two films. Personally, I'm really hoping that the sense of finality is that Batman has returned to stay by the end of the film as the person he was always meant to be.
Candidly, if they do kill Bruce/Batman off, even with someone else to take his place, I will be royally pissed about it. Some might see it as balsy, but I think it would be a like dissing the fans. For myself I want my favourite superhero ultimately triumphant over terrific odds and to live on to fight the good fight.