I'm hoping they at least increase to 20 gbps from the 18 gbps in current HDMI 2.0 chips, because then HDR10 would work at 4K60 in 4:4:4, in other words, those features would be usable at the same time. Currently you have to drop to 4:2:2. A mere 10% HDMI bandwidth boost would allow 4:4:4 HDR10.Exactly. Seeing HDMI 2.1 term used for marketing a 2.1 feature, when it’s still HDMI 2.0b is just a blatant move by the HDMI.org to hype HDMI 2.1 before it’s time. Now we start another period of dealer/consumer confusion.
This would be a terrific boon for PC use and gamers too.
But, I agree that it's likely that the first batch of "HDMI 2.1" electronics only implement features and not bandwidth increases. We'll see.