As previously shared by Clem; Linux Mint isn't in the business of gambling on winners. Linux Mint 16 will use Xorg. Like all other distros and desktop environments, except for Ubuntu with Unity, Linux Mint will most likely eventually move to Wayland. Mir is only developed for Ubuntu with Unity currently. It may eventually also be made suitable for other desktop environments and other distros, but that is unlikely. Mir is a one distro + one desktop environment project.
Mir is being developed for Unity specifically, and Unity was developed for Ubuntu specifically. The lack of Unity on other distros is not because everybody doesn't like it (there are many users that do like it), but due to it having been developed for Ubuntu specifically and being hard to port to other distros. There are but a few distros (not counting Ubuntu derivatives) that have successfully ported Ubuntu: http://en.wikipedia.org/wiki/Unity_%28u ... ailability
z_mumford wrote:could this Mint Gaming be short lived?
Perhaps you are referring to the SteamBox plans and that Steam for Linux started on Ubuntu? Steam however works on other desktop environments and on other distros. Time will tell whether Valve will bind tightly to Ubuntu and thus to Mir, and whether that means that also AMD and Nvidia will bind tightly to Mir.
Wayland already works on Intel, and also on AMD and Nvidia when using the open source drivers. Support from AMD and Nvidia for Wayland with the closed source drivers is pending, though at least Nvidia was reported to be working on it.
I'll just happily continue to use Intel for gaming which works fine for everything except the latest "shoot everything in sight" games that I don't enjoy anyway
See a recent comparison of Intel performance for gaming: http://www.phoronix.com/scan.php?page=a ... deon&num=1