It needs to change to a completely different type of visual to really be cool. We're at the end of being able to tell with just pixels imo. It's what those pixels can do that will be cool in the future.
Fully fluid 3d images and holographs of such should be the next big thing. Resolution is just going to keep getting higher and at a point, they'll be fuck all difference to the average human eye
I just want a nintendo switch that plays games portably at 1080p 60fps with a battery life of 10hrs or more that still the same size and doesn't melt I'm my hands or sound like a jet engine.