Interesting, I am not sure if I agree with the 4K decision or not, since lately I have been playing a lot of C&C RedAlert through http://www.openra.net/, and I kind of like the pixelated graphics, but I understand it is not for everyone.

OpenRA is an open source re-implementation with newer controls, so for an example you can use middle-click for dragging the camera, they also introduced a widescreen mode, and support for modern screen resolutions.

I then tried to play the original, and it felt really rough, almost unplayable.