Re: nvidia and the wayland display server
Actually, I got the answer at the phoronix forums just a little bit after asking the question here. The answer is that currently DRI2 and KMS use is hardcoded in Wayland, but a very small adjustment would be needed to allow the nvidia blob. All that's needed in the driver is modesetting in the kernel, which nvidia already has, and support for a specific EGL extension, which I'm sure nvidia would quickly handle if they don't already.
In short: When Wayland gets closer to be usable and starts becoming default in distros, there will be nvidia support for it.