Re: X Server 1.11.1 won't work with 173.14.31
Nvidia never gives ETAs. They can't, because their priority list isn't static. And "me too" posts will not get them to respond.
You can go searching back to figure out how long it previously took for the legacy driver to get updated after an X release. That can give you a rough idea. Beyond that, just be patient, and stick with xorg-server-1.10