just curious to see what your disposition was on that one.
as for Skyrim, i'm game. Bethesda set the bar pretty high with Oblivion when it designed Cyrodiil when it came to overall diversity of settings. Despite that Skyrim is mostly cold mountains and whatnot, i can imagine that it wouldn't take much for there to be at least some diversity between all of that. Just think: if there are mountains, then there are also valleys, and the diversity of going from the bottom of the valley to the top of a mountain is always immense.
i think that there even stands a chance for additional gameplay elements such as needing to adapt to weather conditions and even seasonal changes. in mountainous terrain, weather conditions change rapidly, and seasonal changes can be drastic. that alone can add quite a bit of diversity to the game as well.
See the struggle of the faithless lot as they negate their time
How low to sink to the depths of their frame of mind