Some Linux distributions are substituting Xorg with wayland, Xorg self seems to aim to obsolete x11, and there is now a questionable fork that probably will not lead to a success:
https://github.com/X11Libre/xserver Sure x11 is not perfect, it was not from the beginning, and much of its original intended functionality is obstructed by later developments (unfortunately 'network transparency'), but wayland is not an improvement of x11, it is something else. I do think a fork will be necessary if one wants something with the functionality of x11, and there will be a point of no return if it is not done timely. Could xenocara become the continuation of x11? Rodrigo