ArenaNet announces it is debuting two playable demos for Guild Wars 2 to attendees of PAX East this weekend, one PvE and the other PvP. They don't say when these will be publicly released (technically, they don't actually confirm they even will be), but they do outline what they will demonstrate from the MMORPG:

ArenaNet is bringing the Guild Wars 2: Heart of Thorns demo to fans at PAX East after announcing it as the first expansion to Guild Wars 2 in January at PAX South. Fans should line up early at ArenaNet’s booth (#5116) to get their hands on two different demos. There is a PvE demo that takes players on the first steps of the journey into the new Heart of Maguuma jungle, where they can experience the revenant, the entirely new playable profession coming with the expansion. They can also get a glimpse of the Mastery system, ArenaNet’s new approach to introducing endgame progression in an MMO. There is also a PvP demo of the all-new Stronghold game mode. Stronghold introduces new strategy and role-play into PvP with a mode where teams become either pirates or knights who must infiltrate and defend ground to kill the enemy lord. In addition to the opportunity to get hands-on with Guild Wars 2: Heart of Thorns, ArenaNet will have a stage at its booth running developer-hosted demos, guest play sessions with popular online Guild Wars 2 streamers and trivia contests with prizes.