Yeah, what I'd like to see is a retexture that makes them darker from the outside, maybe giving them a brown hue. http://www.planetware.com/i/photo/wilhelmsbad-hanau-d982.jpg.
The inside would benefit from similar retextures as well, I suppose.
Well, who knows. Koldorn is not likely to make an appearance again, but maybe AmpolX will tackle the fort ruins eventually.