At the moment there's no reward for voting, you can do it only for server or your satisfaction. I was aiming to make rewards from events so people can enjoy game even more.
Making good voting script would take some time and at the moment this is not my priority.
Atm I will be concentrating on final bug-fix patch (which is almost ready) and donation system.
Maybe later I will do rewards for voting, but don't expect it really soon.