A way forward probably looks like a more feature-oriented fork of wayland than a do-over. The basic protocol is fine, it's just there's no sense of urgency to actually add important features to the standard, just a long design-by-comittee process which bogs down progress and frustrates developers and users.
There doesn't need to be any sense of urgency; see all the people complaining that there is no screen casting API? Well, it was implemented three years ago by all three major compositors, and they still didn't manage to notice.
