Here's some more stuff that is decidedly speculation. This is from a chum who got it from a chum who works for... Well, I'll let you guess. 
My chum's chum doesn't work in a department that makes him privy to the innermost workings, so he is trying to makes sense of the data that come his way. He has concluded that Canon will release 3 new SLRs this year: the first, as we have seen, is the 1D MkII. The other two will be announced in the autumn (that's fall for those that that need translation
), so presumably Photokina. Neither of these will be the much anticipated 3D, but the 1Ds Mk II and the other will not be a replacement for the 10D, but another excursion into the mass market with something below the 300DRebel at 600-700 currency units.
Canon have publically stated that their only pro cameras will be full-frame, so I imagine that the 1D MkIII is somewhere in the pipeline, but will be dependent on, among other things, the ability to process an image FF CMOS at the machine gun speed necessary to satisfy the PJ and sports shooter. Once that happens, then maybe there will be room for a 1.3 crop 3D model and the 10D (or its replacement) will sit below that with the same 1.6 crop.
My chum also had an interesting theory that some segment of the digital still camera market will disappear in the future. Digital video will be of such a standard that if you want a still picture, you'll just choose "that frame".
Regards,