Timezones are a problem for some, but nothing I can do about it I'm afraid. Some have school, some have job, some both and so on. Myself I have full time job that leaves very little time. I used to play on US servers back then at WoW, I eventually gave up because of timezone issues. Best not to play if it affects the health, nothing good comes out of that. The faction majority here are within European timezone, although we have some from US/Canada too and they play with us. I suppose it depends on available playtime, and that's often very individual regardless of timezone, everyone has a different time available they can and want to spend on the game.
Still, new members are accepted from time to time, for example three players were accepted recently. Nothing is ideal but the process works well already, several enhancements are coming to make it even better and easier. However the primary task of any new faction is in management basis: getting solid core player base.
