For the rest of the year, I'm mostly looking forward to Borderlands 2, Guild Wars 2, and Torchlight 2. All of those have been pre-purchased. If Heart of the Swarm is coming out this year, I'll definitely be picking it up, as well. I'll probably also pick up Assassin's Creed 3, but later on at a discount. I just restarted the first game this summer on the PC, and have to replay 2. I've never played Brotherhood or Revelations on any platform.
I should be really excited about Bioshock Infinite, but I'm not feeling it yet. The first Bioshock is one of my all time favorites. I'll mostly pick it up when it comes out.