Videocast on the topic and issues:
http://www.youtube.com/watch?v=kCX33Cc4D9A&feature=player_embedded
Fan reaction to the shutdown:
http://www.youtube.com/watch?v=TWb3cxA4g_U&feature=player_embedded
The speculation for the shutdown is the game had enough people still subscribed to keep the game afloat, but the licensing of SW properties is the costs which most likely sunk this ship.