The fact that they mention dynamic range again for the first time in years and years is a quite promising sign!
OTOH the fact that it appears to still be stuck at 5fps even in cropped mode while the Nikons go to 7fps is a pretty mega turn off, especially since it appears that the video will absolutely stink on it (by today's standards) and be both much less usable and with far worse IQ than 5D3 + ML video.
So it seems that Canon did, one hopes, finally move us into wide dynamic range world (although it does still remain to be proven and it might just be some big new stride at high ISO only or something) but they are still being Canon in not even being willing to put in even just a 5D3 class mirror box to at least get it to a key 6fps for action.
Fact of the matter is the Nikon cameras are a lot more all around since they can hit not only 6fps but even 7fps in cropped modes and are thus pretty fine for action and then they can drop into 36MP FF high DR for low ISO landscapes and such. The D810 is awesome for field sports action and wildlife with the decent 36MP reach and 7fps speed and then awesome for landscapes with the 36MP FF with high DR. That is a much more rounded camera overall IMO. (of course the lenses and UI are worse IMO)
This does offer more reach for wildlife than the D810, but you have to think it won't be too long before Nikon comes out with their 50MP cam with high low ISO DR and that it will hit 7fps in cropped mode.
If it had high low ISO DR and good video or high low ISO DR and became a bit of an action camera in cropped wildlife/field sports mode then you'd be talking, but it seems like it will deliver only 1 of the 3 (and the 1 is not yet a guarantee). At the very least if it does end up delivering the DR at least we know Canon is finally back in the game for sensors though and not a lost cause brand.
It still seems that Nikon will soon release a camera that will be an equal or better body in every way though. Of course it is true that the Canon lens line-up is much nicer (not a small thing by any means) and many prefer the Canon UI by a fair bit.
I'm a bit bummed that Canon had to be Canon and cripple the mirror box to sub-5D3 levels and prevent it from cranking out fps in cropped modes.
Sure the 5D4 will deliver the speed and hopefully video and DR, but then it won't have the reach for wildlife this one does.
The 7D2 has the speed and the reach but not the FF or DR for landscapes or the video.
They always have to leave one or more things out from each, even in the cases where it would've been trivial to allow for the extra thing.
With punting the video so badly on this, I thought they'd then knock every stills aspect out of the park. They may have for static stuff, but punted on the higher fps in cropped modes thing.