First off, this question isn't meant to blow off the New52 concept as a whole, as I am giving it a shot and some ideas seem cool.
That being said, I don't feel that Batman needed to become more modern or for a new generation. That was a bad excuse for rebooting. Maybe it's just me, but as I'm reading the older universe stuff, story arcs 10, 20, even 30 years ago, I'm usually not actively noticing "wow, this comic is OLD" besides the ads and sometimes the dialogue/slang. I feel that most of the stories could have very well been set in the here and now just as well back in say 1990. For one, Batman is so technologically advanced that most of his gadgets are just as groundbreaking today as they were in the original stories. Weapons have essentially remained the same for ages - M16s, AKs, and Uzis are just as deadly and common today as they were back then. The only things needing modernizing are subtle things here and there, most of which my mind overlooks when reading. For example, a person using a phone booth or a classic cord telephone would in todays comic probably be using an iPhone, but that wouldn't change the story. Thugs stealing VCRs would today be thugs stealing DVD/BluRay players. I guess the style of clothing has changed some, but when you consider most of the art is on a man who dresses up like a bat and villains who always wear gimmicky outfits, you don't pay attention to some background chump who just happens to have a rat-tail or a mullet or some guy wearing a green leisure suit. Anybody agree? Disagree? Just curious to hear others' opinions.