The first certified monitor with hdmi 2.1 was announced, it`s by Rog (Asus).
4k 120Hz gaming can now be expected in hdmi world, if you manage to obtain corage to splurge $$$$ (that amount) in the next big GPU.
I’m gonna wait until @wendell does the work for me and makes a recommendation.
I know he’s been gaming in 4K recently, and I hope it’s around the corner.
maybe bundled in 3xxx green cards review