They need to hurry with the 4K C-DSLR. Sony is kicking Canon's A$$ now in video and a LOT of people have switched to the Sony FS-100, especially now that the Metabones adaptor allows full electronic interface with the FS-100 and Canon lenses. Canon could have owned that market, but they slept on it, so Sony took advantage and came out on top.
The 5D3 is shaping up to be a real disappointment in video since it's still has the soft, up-res'd false HD (at least in the early test models). So yeah, the 4K C-DSLR really needs to come out. And have a FLIP SCREEN for God sake. We need it for video.
If it's not soon, I'm going to have to buy the Sony FS-100. I'm not thrilled about it since I now hate shooting with the video camera form, but I need a better picture.
If the 4K DSLR came out at NAB in April, I would buy it the next day even it it is $6000. I need a better video solution and I cannot wait much longer.
And NO, that is not going to be the high mega-pixel camera from Canon. Video requires low mega-pixels because then the processor has less work to do to down-scale the image into a 2K output (or in this case a 2K to 4K) output.