Yeah, 4K will be the next step forward.
Again, the monitors will be taking Cues from the tv/movie industry.
But I'm not sure I can wait that long.
Will probably be getting a 3x 27" to replace my 2x 24".
I've had them for way too long.
And 4K gaming?
Take a gander yourself.
It's already here and now.
PC Gaming at 4K Resolution - Imgur