For a more general outline, the calendar has been updated for October, with the important dates noted. No plot information at all is on the calendar, so it's available for everyone. The one line summary that was released earlier in a news post is as follows: A large, game-wide plot involving a massive political shift in the city government, accompanied by a large attacking force that the player characters must assist in fending off.
In non-spoiler news, we are almost done (finally!) setting up our NPC accounts, and we strongly encourage everyone to use their IC inboxes as we start playing around with plots. We are eager to involve PCs in the game wide plots, and interaction with the NPCs is one easy, natural way to do that.
( HERE BE GAME PLOT SPOILERS. )