How about you join the new server and do some stuffs to prevent it from dying? I mean even if it die, new servers now get merge pretty fast. I'm on a 4 months + old server and already merged like a month ago.

Things you can do to help prolong your server life are :

+If you are a group leader, don't hoard all the good players in your group. Normal players are tend to join the strongest group without knowing doing so will directly kill the server. Learn to refuse, do not take more than 20 players and more than 4 top players This way players will be distribute equally between at least 3 or 4 groups and your server will have a much better competition instead of people just join the strongest group and the rest jump to another server.

+If you are not a leader type then don't go join the strongest group, join the 2nd, 3rd, 4th and help them instead.