Hmm.. well they can turn 7D series into APS-H sensors because 1D and 5D will now be FF sensor series. But if 7D changes to APS-H, I would expect that the price of 7D2 to be much more expensive.
Speaking of birdies, wildlife and sports who may want a crop - I've having mixed feelings. Before 1DX, there is a reason for one to own both 1Ds and 1D - FF for portraits, landscapes etc while the crop for wildlife and sports. Some would own a 1D + 5D instead for a FF + crop combo. These people who owned the 1D will get used to the build, weather seal and the quality of the 1D.
So how will a APS-H 7D2 attract birders who want something soildly built whith reliable weather seal? If they improve too much on the 7D series, it would make it too close to the 5D which is supposed to be a higher line, and Canon has the practice to seperate their line of bodies very carefully. It would make 7D too expensive for it's targetted group too.
If APS-H were to be retained, maybe a 3D or something in between a 1D and 5D would sound more probable.
But that's just my views

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