I think you're going to be waiting a long time, even the geforce 4080 and 4090 don't support displayport 2.0. Additionally much of the demand for >60Hz is for

I think you're going to be waiting a long time, even the geforce 4080 and 4090 don't support displayport 2.0. Additionally much of the demand for >60Hz is for gaming purposes, and there is nowhere near a powerful enough GPU anyone can afford that would be able to render games in high quality or extreme detail level at 8K above 60 FPS. Right now a GPU that costs $1500 USD can maybe render a 4K game with extreme detail level at framerates that vary between 55 to 75 fps.