What the post says. There were some great expansions to Athas done on http://ds.daegmorgan.net. It seems a shame it was never completed, including the other continents. There were also a ton of ideas thrown out (someone saved them in a doc I downloaded to my googledrive) for some of these areas – like an elemental theocracy that worships drakes on the far western side of the continent, that I’d be interested in fleshing out more.
Secondarily, I’d be interested in redoing some of the city maps to make them more realistic – most of the maps have this horrible fantasy city map habit of having way too few buildings for the supposed populations. I think the idea is that it’s too much work to draw them all, and that each building is supposed to represent a block or more. I’d like to try for something better, also for any new city states created.