Turbine has just released the first video trailer for The Lord of the Rings Online: Siege of Mirkwood, the upcoming digital expansion to the award-winning MMO, which is scheduled to launch on December 1, 2009 in North America. Siege of Mirkwood will expand the online world of Middle-earth where players will join forces to press further eastward into the dark, foreboding and treacherous forest of Mirkwood and take part in the epic conclusion to Volume II of The Lord of the Rings Online.