It looks like there will be realm maintenance for all US realms this February 2nd. Since it seems to be somewhat extended (3 AM PST to 11 AM PST) and we're waiting for the 3.3.2 patch to drop in order to start Arena Season 8, I'm willing to go out on a limb and suppose that there will most likely be the next minor content patch at this time. This will also most likely open the last wing of Icecrown Citadel.
So! Are you excited? I'm excited! Well, also I'm kind of hoping I'm right, but then I'm excited. We'll have the Tuesday Morning Post for you to obsess over while waiting for the realms to come up, not that I compulsively refresh the realm status page or anything myself. No no, not me.