Iron Man is expected next summer.
I'm not sure if I'll see Star Trek, I've never been a fan of the few ST stuff I've watched. The first trailer I saw for it made it look awesome, then it seems every trailer after that I've seen made it look worse.
I'll definately see Transformers 2, my opinions about Transformers 1 are made clear in the thread on it in this subforum.
Can't think of anything other than Transformers that I really care to watch, I don't go out to the movies very often. I watched some G.I. Joe as a kid, and had some of the toys, but the movie just looks bad, so probably won't see it until it comes out on disk.