At least one announcement (presumably Dec. 1) is a D3x, with a clear D3x badge on it - Nikon just, either accidentally or on purpose, posted pictures of a D3x (which looks EXACTLY like a D3, so the pictures themselves don't mean anything - the only thing that does is that they showed up on Nikon's own website). There may be another camera waiting in the wings, but, if so, we don't know anything about it yet... I'm looking forward to the specs, and more importantly, to pictures FROM instead of OF the D3x - some folks who have seen it in person and taken test shots hint at breakthrough image quality (I have held off on moving to medium format, waiting to see if Nikon comes through).
-Dan