I dunno. I've read the subsequent DPAF patents, and there isn't anything remotely revolutionary in there. Mostly just using different sized photodiodes for the AF part, and a means of increasing sensitivity for AF without reducing IQ. If that's all Canon's got for the 7D II, they are going to take a HUGE reputation hit...and they HAVE to know that... (If they don't, then they've totally lost touch with their customer base, and I am seriously hoping that's not the case.)
Are you suggesting that the people here are representative of Canon's customer base? I see lots of clamoring for better IQ on forums but until the 70D, the 7D remained a strong seller. I'd bet a 7DII with 41ish AF points and 10 fps, and a 24 MP DPAF sensor similar in IQ to the 70D, would sell quite well.
It may sell, but I think it would still hurt Canon's reputation. To date, they actually have a very good track record of listening to their customers and delivering on their customers demands. Both the 1D X and 5D III are excellent examples of that...Canon pretty much NAILED both on the head, delivering exactly what their customers wanted.
It's very clear that their customers want a better sensor in the 7D II. If Canon was to make it some big video DSLR, and completely ignore their still photography customer demands, I just think that would hurt Canon's reputation as a company that listens to their customers, and delivers meaningful improvements in IQ. As much as the 1D X and 5D III did not improve low ISO IQ to the same degree as the D800, both improved high ISO IQ considerably, and people are quite happy with them.
All I've heard, for the last several years, from people all over the net, is they want Canon to deliver better DR. Regardless of whether more DR is nearly as meaningful or important as people seem to think it is, it's still by far the single loudest demand that Canon customers, as a gigantic mob, have been demanding. I think it would be damaging to Canon's reputation to completely ignore that demand, and not only that, but completely ignore still photography demands overall and just focus in the video stuff (which is what LTRLI's posts seemed to indicate whatever rumors he read said.)
One of the things I like most about Canon is they've listened to their customers, for decades now, they have delivered new products based directly on customer feedback. I remember for years the "fewer megapixels, better pixels" demand of pro photographers who were sick of the endless megapixel race. I remember the AF system of the 5D II being one of the biggest complaints about that camera. I remember the lack of f/8 AF in anything but the 1D line being another sticking point. Canon directly addressed all of those things, and other key issues their customers had. If they ignore the sensor IQ/DR thing...they are ignoring a BIIIG issue their customers have. It doesn't matter if it matters, it doesn't matter if low ISO DR isn't as important as some of the Canon naysayers and die-hard Nikon fans insist...all that really matters is Canon's low ISO DR is most definitely at the top of a very significant number of Canon users complaint lists. They have to respond to it...some how, some way...they can't simply ignore it.