Origins. . . let me see. It will be a race, I think, to see if The Quintessential Dwarf turns up at retailers or Origins first. However, you will see The Slayer's Guide to Orcs, The Slayer's Guide to Rules Lawyers and Encyclopaedia Arcane - Elementalism.
Those into Judge Dredd will find the full range of rulebook and supplements thus far, as well as Mega-City One's Most Wanted.
I have a feeling there may be a few copies of the Slayer's Guide to Female Gamers flying around as well, though that may be a GenCon release. . .