A problem, of course, comes from when they moved all servers to USA when they took the game from CodeMasters. For some of those who joined a server (after that time) that has now hopped across the Atlantic will tend to find the number of people in their time zone decreases as time goes by.
For example, I'm in the UK. The game suggested I join Vilya. So I did and most of my play/characters are there.
Now their are specific EU servers, most new people from UK will tend to join them...
Or if an American joined a server that has now moved to the EU, the number of Americans that will now join that server will be much, much smaller.
It won't affect everyone, but for those it will affect, it could be bad
I certainly won't be moving from Vilya because I've met lots of nice people and those not in my timezone I meet at the weekends. But for some it could be rough.