I am not trying to pee on everyone's parade here BUT, I think you have to have hdmi 2.0a in order to take advantage of all the latest.
The Krell Foundation is in this boat right now. It is hdmi 2.0 hdcp 2.2 and cannot pass 4k at 4.4.4 or can't pass the other at 10bit it also can't pass any hdr material. Hdmi 2.0 is old technology.
I am sure that they would be coming out with a hdmi 2.0a card before they do all this upgrading.
JVC RS4810 projector Stewart Cima 115" 2.35 screen, ATI 523 and 528 amps
7 mirror imaged 2 way DIY monitors. All matched to within 1db. All parts matched, 1 SVS SB16 ultra subwoofer
Emotiva XMC-1 processor Marantz UD5007 Bluray player
Furman sequencer ran off of a double 50amp breaker,Furman power conditioner
All in a dedicated 15x22x8 foot dedicated home theater.