If you can find a good map dev. to do the map editing then sure, this suggestion would be simple. Though, I wouldn't mind seeing the towns being edited.
1. Flaris = Stay Neutral with the Coral Island textures, etc.
2. Saint Morning = Dungeon-like places and high walls, whatever.
3. Darkon = Floating Islands, mists, bridges, If you've watched Avatar, then yea you get the point.