Don’t hold your breath for 5K video from a Nikon DSLR as 12 bit 1664 x 1100 resolution is what is provided right now. But the live-view stream is 4992 x 3280 pixels and it should be available to be captured. Even if live-view is captured, it would likely be at a lower frame rate than 24fps.
When the Magic Lantern team first started capturing live-view on Canon cameras they were not sure what they could do with it but they quickly made it into very useable frame rates. So it will be interesting to see how this development goes.
You can view the thread about this raw video hack on the Nikon Hackers forum and below is a raw frame example of what they have done so far.
Microsoft’s PlayReady 3.0 DRM, which is set to be released with Windows 10, is raising some red flags about restrictive and invasive digital rights management.
It seems like the impetus is to provide “secure” 4K streaming and increase the market for 4K streaming services on computers running Windows.
The biggest concern is that users will be compelled to use this technology if they want to stream in 4K. This has not been confirmed yet.
If a movie is playing in a movie theater right now, and you would like to have access to it on your Windows PC, they might make it available on some Windows PCs that have the higher bar for content protection [PlayReady 3.0 DRM]. — Nishanth Lingamneni (Microsoft)
Resource Online has an article titled Why Canon Needs to Rethink Their Ridiculous Pricing on the C300 Mark II where they compare the Canon C300 Mark II against the Blackmagic Ursa, Sony FS7, and the Red Scarlet. An interesting read and comparison of these more costly video cameras.