I still am not buying the rumor that the 70D sensor is the same as the 7D2 sensor. That only would have made sense if the 7D2 came out considerably in advance of the 70D, and that ship has sailed. Why a lower trimline body would get such a vital core IQ component that a far better product will get a year later makes no sense at all.
Ditto. It doesn't seem logical for Canon to release a 7D II that didn't bring with it an entirely new set of technology, sensor included, continuing the trend started with the original 7D (do we start calling it the 7Dc for Classic, now? ;P) I also think that, whatever megapixel count is has...18mp, 20mp, or 24mp...the 7D II sensor really needs to shine. It needs to produce IQ better than the 7D and 70D that preceeded it. It needs to demonstrate Canon is still interested in their customers needs, and still capable of competing in a sensor fabrication environment riddled with far more competition and innovation than ever seen in the past.
(Not to mention the fact that a Canon employee mentioned in a DPR interview that they would be doing something interesting and innovative with the 7D II sensor not long ago.)