[noggin]

After some fast reading I come to this 'simplified' conclusion:

Since the information for HDR en WCG is in the metadata, Kaby Lake will be able to handle that within the known decoders (HEVC, AVC)
It will be limited to 10-bit: no problem for HDR10 standard, but Dolby Vision...

Assuming that the metadata is passed from the HEVC/AVC decoder to the HDMI output stages - then yes I'd agree. Though that is an assumption that I don't know we can confirm yet. I assume it will require driver support to allow the metadata to be passed to the HDMI output sub-systems?

"Dolby Vision can be decoded by a standard HEVC decoder, then post-processed using a Dolby Vision module to produce the full range 12 bit Dolby Vision signal" (whatever that module may be)

But you're right, this has nothing to do with Kaby Lake anymore. Will read that HDMI 2.1 article...

I think that they are saying that they have different post-processing with a different metadata path? (Or does HDR-10 not have post-processing and instead just have display metadata - or is this just semantics?)