Ubisoft's biggest titles for 2013 such as Assassin's Creed IV, Watch Dogs, and Splinter Cell: Blacklist will all be at PAX East, but you won't be able to play any of them. There will only be controlled demo presentations, with swag such as an inflatable ACIV sword or a Watch Dogs lanyard given out to those that wait in line to watch someone else play.
What will be playable at Ubisoft's booth? ShootMania Storm, Might & Magic Heroes VI Shades of Darkness, Might & Magic Duel of Champions Online Card Game, Spartacus Legends, and Call of Juarez Gunslinger. Oh boy!