Am I the only person thinking that you're all over-thinking this?
I don't think Canon cares for speculation and rumour at all. the 1D-X was dropped with a nice announcement, and that was it. Canon ARE smart enough to know that the market will work for them, and that with units out there in the wild, there is the chance they will be seen, talked about, etc.
The good news coming from all this is an announcement within the next 2 1/2 weeks, it would seem. If I had to guess, based on the body, I'd say it's the new 5, with some of the video options of the 7 factored in, and a nice widescreen view panel. Obviously, I'm one of the thousands that can't wait, so it's good news it's sooner rather than later.