New DLC introducing the Black Plague as an event; The Reaper's Due, is to be released on the 25th of this month (a week away!)
The update will also include "game optimisation", faster startup, making your allies more cheesed if you don't join their wars, new events.
Sounds pretty exciting, but as I haven't even gotten Conclave DLC yet, (and I am unemployed) I probably wont get this one too soon either. Most of the optimisation type changes will be available to all players, so I guess no pressure. Besides, I spend most of my time in the Charlemagne era dicking about as an unlikely count who achieves nothing.