I don't think Wayland will ever be a full replacement for me as it lacks network transparency. I really love that about X and with cloud solutions this usecase is becoming more important again.
> waypipe should be installed on both the local and remote computers. There is a user-friendly command line pattern which prefixes a call to ssh and automatically sets up a reverse tunnel for protocol data. For example,
waypipe ssh user@theserver weston-terminal
'shared memory buffers' sounds like an exploit waiting to happen though. Of course X11 is no better in this regard, an X-Client running on a remote X-Server has complete access to the remote display(s). But this is something that is unfortunately a design flaw from more naive times. And if there had been an X11R7 and onwards it would no doubt have addressed it.
I think part of the problem here is that the same people promoting Wayland have also taken X11 on board to 'maintain' so they have all the incentive to let it die. I'd have preferred to see an organisation that was ready to take it into the future.
But yes X is a great common denominator. I used it back in the 90s with Xappeal on DOS. Was great at college when we ran out of free X terminals.