I want a linux distro. Lightweight. Extremely customizable. What I mean by that, if there's an element on the screen, you should be able to manipulate it however the hell you want. Change your desktop layout, and more. I think this would change so much of what we know.
Before you say KDE Plasma, I have one more thing. Easy customization. KDE isn't lightweight and there's a lot of colors that can't be changed easily, without knowing a bunch of things. Why not make it easy?