@unfocused. Interesting observation sir! It also seem to align with the fact Canon seem to have decised to segment the market in several buckets and come out with a specific camera for each bucket. This is why I beleive we are seeing more model coming soon like a video specific model to sit between the C300 and the 5DmkIII for example (The famous 4k model) or the fact they will likely have a high MP model at one point.
Nikon seem to have taken a different approach with two major pro camera for all the segment (D800 and D4) where Canon might have 4-5 models in total when we are all said and done.
Will be interesting to see this one pan out!
The only people who appear to have been left out in the cold so far are wildlife shooters, through the loss of f/8 AF. That makes me wonder if Canon has a plan in that segment. - Could the 4K DSLR be coming with an APS-H sensor (cropped to Super-35 for video) and f/8 AF to satisfy the market of (wildlife) documentary makers, working in the field under adverse conditions? - That would allow them to work with a single camera for video and stills. Of course, that is total speculation!
I think the key difference here is volume. Even small towns of less than 5,000 or so have at least one or two wedding photographers (not necessarily just weddings of course). In a city of 100,000 there might be 20-30 (maybe more). But, how many wildlife photographers are there in a similar size city? (meaning people who earn their living shooting wildlife) Probably less than one.
My original point was that Canon knew the market and developed a product that would satisfy that market. Read some of the comments on these posts from wedding photographers. They seem to be very pleased with the Mark III.
As for further differentiation...I don't know enough about either the market or the relative cost of development to venture a guess what further differentiation would be worth the investment for Canon.
My original point was just a simple observation. There has been a lot of self-obsessed complaining on the internets from people who didn't get exactly the camera they wanted. But, from a business perspective, it sure looks like Canon figured out a need and focused in on it with laser-like precision. I admire that kind of corporate skill.