Re: Seriously guys…
Who cares what the Fedora set have to say about Plasma? This is part of the same crowd who brought us the systemd-cancer ...
Instead, for KDE related matters perhaps ask KDE instead[0]?
Quoting from that document:
Why not a new Compositor?
Given that KWin was designed as a X11 Window Manager and later as a X11 compositor the question is valid, why not to implement a new Wayland compositor from scratch. Most parts of KWin are X11 independent. E.g. the Desktop Effect system is able to integrate Wayland clients without any change, the same is true for Window Decorations and other parts.
Another reason is that the KWin development team does not have the manpower to maintain an independent X11 window manager and a Wayland compositor. Starting a new Wayland compositor would mean to stop the work on the X11 window manager, which would be a bad move as we cannot know yet whether Wayland will succeed and will be supported on all hardware. Also in future KDE will have to provide an X11 window manager.
So no. KDE/Plasma will be running with X11 into the foreseeable future.
[0] For the copy/paste folks: https://community.kde.org/KWin/Wayland