I don't normally post a WoW, but it was part of the Holiday Reading Challenge, so I've decided I would today:
Right now, I'm definitely anxious for the release of Unwholly by Neal Shusterman — the sequel to Unwind. I'm also excited for Supernaturally by Kiersten White, the sequel to Paranormalcy.
Sweetly by Jackson Pearce is the sequel/companion novel to Sister's Red which I am very, very excited to read.
And, of course, as I've mentioned before, I'm totally dying to read Where She Went by Gayle Forman, the sequel to If I Stay and The Piper's Son by Melina Marchetta, which is the sequel/companion novel to Saving Francesca.