Its Easy..
From an IT Point of View. Hdmi 2.0, will not make it. Reason= Hdmi 2= 4K Tv, 60HZ.. - The Technology is moving too fast.. This standard, NOW suffers from limitations..
First time in GAMER History, that there are already Video Cards, 4K Gaming, but at 30FPS.. Impressive, never been done before. Usually it is the Card, playing catch up. With that - The Demand for those panes, are going to go Ridiculous. Asus, is releasing, a Gamer monitor with 4k Display, 60Hz, and the price - $3200.. Give\take.. You can already get a 50" 4K TV, now, for $1250, and when that baby turned on.. Silence is what it was.
Display port, already, supports, the Magical 4K, 60hz.. -Imagine Eye-Infinity, on 3 of these..
SO,.. Hdmi 2.0 Is SOSO\Hdmi 1.4 =4K 30Hz..
Will be Different Cables..
Different Devices..
Different Cable Box's.. New version of Xbox1-UHD.. And so on..
Best to hold off, untill a standard, is revised. And for Gamers, that means, buying YET Another, insane priced video card.. It Costs.. But the results, are Gamechanging.
Almost as painful as the change to hdmi...