I wonder if this means that they could eventually can the 7D?
Can the 7D for what?
putting all the features (fps, afma, 19ptaf, sealing) that make it better than the 60D, with APS-C, into a 70D? possible, but then it's just a 7Dmk2 with a different name. leaves too much price room between the 600D and 70D too. more price points at the lower end make people spend.
take the FPS and AF, put it into a FF camera? then there's no 'sports' APS-C for a start, and it would rip sales from under the APS-H 1Dmk4 unless it's similarly priced to the 1D4 (then it becomes a 'ff+8fps+19ptaf' vs '1.3x+10fps+45ptaf' decision, i think all but sports pros would take the FF).
If the 6D is going to be anything, it's going to be video version of the 5D mk2. maybe same 21mp sensor with raw video? or 5D3 is built more like the 7D, 30ish MP and 5-6fps with same video as now, 6D is then same 30ish MP, 2-3fps, bult like 5D2 now, with a pellicle mirror for video AF (or somehow better video AF)?
or maybe an APS-H sports camera, maybe same specs as 7D, lower fps than the 1D4 but gripless body and not a 1-series tank. (that's just 7Dmk2 with a different name so people realise you can't use EF-S on it.) doubtful.