Yup, apparently within the next 24 hours the multiplayer demo will be available for download, we will have more news as soon as it is released.

The demo contains the Capture the Flag, Deathmatch and Team Deathmatch modes, and like the full game, servers can support up to 64 players simultaneously, with full RPG-style experience for all players (which unlocks new classes on both sides as you earn experience).

Thanks, Blues.