The only open slots are both the Ticon Consortium, in Adamant 011 (which Ragnarok-X is going to take) and in Adamant 010. The empires are both Organic races. It is, of course, entirely possible for you to create a new game.

Once Geo gets 0.13.33 set up on PBW, the mod on PBW should remain constant, unless critical, game breaking bugs are found.