Well we can only judge on what we can buy
As for the patents, Canon have been very aggressive patent registerers for a very long time, which is comical when you examine their early history, but that aside, patents do not products make, we have had rumours of hundreds of them over the years here and few see the light of day, we all know Canon are innovative and do a lot of R&D but most of the time companies patent to penis block anybody else.
They have struggled to make DO lenses work from the word go, they seem to be convinced there is something there and won't let it die but we are not there yet, the 70-300 DO is the biggest piece of $1,400 crap ever, I'd love to know sales figures for the 400 DO.
I still don't see how DPAF helps SLR stills shooters.
As for AF and metering, well they introduced the 45 point AF back in 2000, so it isn't like they didn't have time to put a bit more thought into it, though it isn't "radically" different is it? Dedicated processor and all but the same contrast detect chip behind a sub mirror arrangement since in body AF started. Nikon have had colour sensitive metering for years, and not just in the one top of the line body.
As for the 7D MkII having potential, I must, respectfully, disagree, even if it bests the D7100 in sensor metrics by a half stop or so, so what? That makes it slightly worse on overall image IQ than the 6D.
Don't get me wrong, I am not picking a fight and I am not out to bash Canon, I just see the last few years developments with my eyes wide open, stills are not the driving force they were even five years ago when the 7D made such an impact. In my opinion stills are not seen to be the future by Canon.
If the products haven't landed on a shelf yet then all the R&D in the world is no use to me.
The other truth is that stills are a very mature market, the quality and capability we have now vastly out strip most users needs, the 5D MkIII is probably the most complete stills shooters camera ever and Canon clearly don't believe in much higher MP, DR, blah blah sensor specs at this point. I believe we are on a technology plateau with no signs of the next BIG thing.
For me personally, put the 5D MkIII sensor in the 1Dx MkII, get me those TS-E lenses and I don't care, I'll be retired before my customers or I need more than that.