With apologies to the Nikon folks for the ongoing thread hijack!
I reckon all of the 1Dx's new features play very nicely to the idea that it's primarily a sport photography/photojournalism camera - sports 'togs being about the only other community for whom great AF is as important as it is to the wildlife community, and journos not needing big, hi-res files, but presumably being able to benefit significantly from face detection-based AF. Face recognition being pushed so hard as a reason for f/8 AF being dropped
only makes sense to me if the camera isn't seen by Canon as being their wildlife offering.
Canon is well aware that things like f/8 AF and high pixel density are important to wildlife (especially bird) 'togs - well, those that understand the advantages of high pixel density and know better than to believe the drivel out there about its supposed downsides - and there's
waaaay too big a gap between the 1Dx and what any Real World wildlife 'tog would spec as his ideal camera. (Nigel Blake for example, still shoots his 1Ds Mk IIIs in no small way
because of their pixel density, and the resolution/detail benefit it provides).
The logical alternative to that view is that Canon has decided - in essence - to abandon or marginalise its pro wildlife customer base, but that's unlikely, given how many of Canon's "ambassadors" shoot wildlife. I know a lot in the pro wildlife community (and the serious amateurs with money to buy into the pro gear) are fretting over this.
Naaah, I just don't buy that this is it for from Canon wildlife shooters, and I reckon the 1Dx is "just" their Olympics camera.
I actually expect that Canon will do a "7D" and introduce another new category of camera, for the wildlife community: maybe a new form factor (smaller and lighter than the current pro bodies, with a smaller built-in grip/battery pack - let's face it, the weight and bulk of the 1D "bricks" isn't always welcome after a long hard day in the field), a new-generation low noise/high pixel sensor - which despite what some people have to say about it is
eminently doable (perhaps a very densely-packed FF sensor, so that the twin advantages of FF for better noise, and loads of
pixels per duck for cropping, are to hand) - and the 1Dx AF.
The fabled
3D, perhaps...