No, 4k is for film editors and colorists. These are the people who think about resolution color, persistence of vision and so forth for a living, and who ultimately guide the standards that result in quality monitors. Whingeing about HD as if it had hindered some programmer-driven monitor nirvana is laughable; if the needs of programmers were the guiding light of display technology we wouldn't be using GUIs because so many programmers prefer a command-line environment.

I want a 50-inch desktop display with north of 10,000 horizontal pixels.

Big whoop. I want an interactive holodesk and bidirectional wireless neural interface too. I also want dynamically-generated domain specific function graphing so I don't want have to shoehorn my ideas into a one-dimensional text stream.