What I don't like about it all is that Batman takes nearly a decade off, comes back for a few months, and then "retires". The idea that Batman would ever quit being Batman, and leave Gotham especially at the time he does, when the city is overrun by criminals (remember just because Bane and the League of Shadows was defeated and the bomb is gone, doesn't mean the thousands of criminals let loose from the city's prisons and jails are defeated), it goes against the character, all in an attempt to make him seem like a martyr. Which he isn't, unless you consider blowing up an experimental aircraft which he no longer even owned a sacrifice.
But I do agree, I think Bruce would recruit a new hero, but I don't think he would just recruit a street cop, and think that's enough. He'd want to train him, and make sure he was ready for anything. I think the only Robin that Batman ever took out with him right away with minimal training, was Damian Wayne, who was already highly trained by his mother, Talia al Ghul.
And I guess you can assume that the military or some help from out of town comes in to clean up the criminals left in the wake of Bane, but that's still a big assumption. Although, it's more believable than the GCPD being able to control the criminals, considering they were all trapped underground for months and were just in a huge battle. But they just skip that clean up and go right to the Batman statue unveiling.
I liked The Dark Knight Rises, I'm a giant Bat-fan, there's no way I am not going to enjoy the movie on some level, but there are aspects of that movie that doesn't make it feel like Batman. I never expected it to be as good or better than The Dark Knight, anyway. And I still think that Batman Begins is closer feeling to Batman than all of the movies.