Nolan was most definitely done with Batman, he didn't want to do the third. I really wish he'd tell us what he planned to do with the third if Ledger were still alive. That said, I bought the broken cowl edition, I haven't watched the extras yet (though I rarely watch extras) but they all come with the same features I think anyway. Watching it again, Bane's voice is easier to understand, could be watching it at home was easier than in the cinema. I also enjoyed it more a second time.