I was initially most interested by the Dinyart and the Moti (by the way, have you updated the NPC stats yet? Also, what's with the Styr?). Incidentally, I do hope that the Uggor have more than just elephant herding.

At least some more standard cattle would be nice, to say nothing of agriculture.

The Arta Xorti states in general, including Nahar, seem fairly interesting, but I haven't familiarised myself with them all that thoroughly. The Zyeshu seem promising as well, but while the detail about their narratives is a nice touch by the original player I can't say my efforts to write anything in that style resulted in anything worth reading. As for Ferman, Panda might yet come back as well, and it seems more like his sort of thing. Will have to look into Bisria, though.
I am willing to concede that in general both of them are about as practical as Plato's Politeia, and even that Machiavelli had some nice tips on foreign policy and the like, but I insist that as far constructing a totalitarian state goes 1984 has some nice points; it's important to avoid the sillier parts, ofcourse.