First off, the enhanced graphics in LH are very impressive. The game looks really good.
Second, as you play, visualize a slight curvature to the world map; and take notice of just how much more organic (and attractive) this makes it feel.
I believe this could effectively be achieved by simply post processing a slight fish-eye to the 3d world view / strategic map. If possible, keeping the cloth map flat. This one small enhancement would elevate the game, this work of art, to a masterpiece 
; and is most likely much cheaper than actually curving the surface plane.
