Transformers 2? The first was such an egg I shudder at thoughts of a second. Though I am peaked by more Megan Fox eye candy. Anywho, Michael Bay ruined what could have been so good.
Wolverine? I'm looking forward to it, but I don't feel any real excitement - probably because it's a prequel that anyone who has seen the X-Men movies should already know.
Harry Potter? Half-Blood Prince is one of my favorite HP books, but HP seems to have hit it's film peak around 3 or 4. 5 was mediocre and for some reason they kept the same director. I've also heard HORRIBLE reviews from people who saw an advanced screening in Chicago. It sounds like they've ruined a particular death scene and what should be another character's violent outburst.
Star Trek? This one is being held close to the chest by JJ Abrams. I have a lot of hope for it and am probably most excited about this movie of the ones I listed. I enjoy Trek, but it's been a bit of a dud recently. Will this reboot re-energize the franchise? I hope so.