The maintainer of KDE Plasma Compositor and Window Manager, Martin Gräßlin, has said that the future of KDE is with Wayland.
There’s a big debate right now is about who is fit to replace the aging X Display Server, and it seems that Wayland is beginning to become the obvious choice, despite Canonical’s Mir announcement (their own display server).
“Plasma Workspaces 2 will be released at an interesting point of time. We don’t want to do the transition to Qt 5 and Wayland at the same time, so it will still be X based. But we all agree that our future will be on Wayland and even if we use X as the windowing system our primary focus is on Wayland,” stated Martin Gräßlin in a blog post.
Sure enough, nothing substantial will be achieved soon, but it’s going to be very interesting to see what will happen with distributions such as Kubuntu.