As we all know, FFA1 is the only server that is even relatively active. Our S&D and FFA2 server is rarely populated anymore. My suggestion is to take either one of them (preferably FFA2, so as to retain variety), and impose the same rules in-game. The only difference will be the maps in the rotation. Any maps that are not used in FFA1 can be considered, with the really popular ones included by default. With such similarities but difference in the map rotation, we might be able to get as many players in the new server as FFA1.
Cheers,
Jeremy (Juiceh)