March 2, 2012
We and others (again) are getting lots of hints that NDA's will expire on March 2, 2012 and an announcement of a camera body will take place.
It will be a 5D type camera and the same specs as before keep coming up. 22mp, 61AF points, full frame, 6.9fps and all that.
If March 2, 2012 is true, we'll get confirmation very shortly. February 28, 2012 still gets a few mentions, so perhaps something else may be announced on that date.