I have not found any video yet..
Maybe too soon to say "raw video", seems they've managed to get a raw stream.. But also wondering about what Levas wrote about 5k. Though the Bufferes onthe Nikon Cameras might be able to contain much more information than the Canon cameras.
D800 I know has a problem with bursts. Take a high speed burst of 30 pictures and the camera freezes for more than 30 seconds while processing it, not sure if this applies to the cameras they are currently working on.