Nice try! You know I can't give the date until we have it confirmed internally, which is going to be very very very soon. I know the wait is horrible, but we're just adding the final few touches now.
It would be strange to have it before the 12th. It is common practice to lure out possible credits with an event just before a new expansion. The holiday event will end on the 12th (normally). My guess would be the 22nd or 29th for Ronin.