That's always a danger when you try to extend a franchise. The fact that Christian Bale signed on for the movie puts me at ease a bit. He hasn't really ever done a bad movie. And after his Batman success, it isn't like needs the money.
That was my feeling too until I read that he's given the impression that he's less than impressed by the film. I'm hoping that was misreported.
McG is a hack action director, though he's produced some slightly better stuff, so I'll give him the benefit of the doubt.
Jonathan Nolan made a pass on the script. That's Chris Nolan's brother, who co-wrote all of Nolan's movies. That's promising. Haggis and Ryan had a hand in it too. They're both solid writers. Unfortunately, the story itself is by two hacks and an unknown quantity. That's distressing.
I'm waiting for the critics on this one.