Well, assuming it ever comes - what would be awesome is a break down (estimated of course, it wouldn't be 100% accurate) of how many nationalities exist on each server.
It would help those that want to be with certain people, to then be with certain people.

I don't even mind having high non English speaking persons on my server, I'm just tired of it affecting the way other people interact and in turn make everyone pissy all the time, when I'm not even a part of it.
Oh and hate the feeling of having to force or rush everything because people are impatient and you haven't a way to communicate due to the shallow and poor translation system.