"Microsoft Windows will support displays with up to 8K resolution" would be better, as using 8K displays would be only useful for the Matrix Architect.
Of course, nobody needs more than 640K of memory either.
Seriously, though, although I'm sure 4K will become somewhat commonplace in 10 years, the rate of progress for desktop screens is ridiculous compared to the mobile world. I still don't quite understand what stops us from making cheap, large arrays, when we can make the tiniest, most colourful pixels to keep in our pockets. Is it just the general market being completely ignorant/indifferent to good monitors?