Martin Campbell made the only two half-decent Bond movies in two decades. He established the last two new Bond actors before others came along and shitted things up. Hopefully for the next Bond, he can come back for Tom Hardy's debut as the character. Or just let Nolan do it.
Though, I'll admit that the guy doing Captain America has a bunch of bad movies that I happened to enjoy like The Rocketeer.
as for the Batman title, I think three movies are enough. Basically, all three together will probably define the Batman character that we're used to. I mean, in The Dark Knight he is still kinda wishy-washy about things. He was all trying to get Harvey to be Gotham's hero because he wanted to bang Rachael, and then he was doing shit like the cellphone surveillance thing and hanging out with the cops. Also, the next movie is when the Batcave will actually be the Batcave that people think of, probably.
it should end with someone telling Batman that the Joker escaped and that Batman needs to go fuck him up. The beginnings of the cycle and all that.