I think the most surprising detail is the lack of a flip-out LCD screen. I would've expected both a 5DIII or a 7DII to have that. If this camera has a strong emphasis on video, wouldn't a flip-out LCD be a great feature for video?
And the 7D currently competes with the 60D because of similar sensor performance. I would expect a 7D successor to have a flip-out LCD to stand tall above the XXD line.
I also think it seems unlikely that they would take away the pop-up flash for a 7D successor. Yes, they are no substitute for an external flashgun but work great for fill-in when traveling light.
I think it hints that it will be every bit as stills oriented as it is video oriented. A really solid all rounder, better than 7D AF, 40D/50D speed+, video at least as good as on the 1DX with a few things that make it easier than the 1DX to use as a video camera perhaps. Only perhaps lacking in effective reach and max detail if it is a 1dX sensor re-use. Then the 5DX2 does it all by adding in the high MP some years down the line.