Maybe it is the 7D II and the body is just to throw everyone, I mean they could hide a 7D Mark II in a 1D X but you could never hide a 1D X in a 7D!
You don't think a studio photographer would notice the crop factor?
Of course, you are assuming the new 7D Mark II is crop and not full frame.
Still this rumour is only CR1, so maybe they were testing a new Sony Sensor!!