We can only speculate as to what Skyrim will look like. Even what information exists on it in lore may not be much to go by, considering that we can't be sure how well Bethesda would adhere to the lore. After all, wasn't Vvardenfell all ash covered wastes, according to lore, before we actually saw it in a game? Not to mention Cyrodiil was supposed to have tropical jungles... So yeah, Bethesda has been known to contradict the lore descriptions of provinces when they're explored in games before, and they could do so with Skyrim too. Although I think it's pretty much guarenteed that a game set in Skyrim WILL include some snow and ice, but would it cover the entire map? I hope not, I have no objections to snow and ice, although we already got that in Bloodmoon, I wouldn't object to seeing what Bethesda could do with it when they have access to modern graphics technology and the luxury of having more than just an expansion to explore it, but if the whole game was entirely covered in it, it would get pretty boring after a while. So I do hope that there will be more variety in terrain than just snow and ice, but we can't really know for sure what Bethesda is doing until they announce the Elder Scrolls V which is assumed to be set in Skyrim which they may or may not be developing. Hopefully when it is announced, we'll get some screenshots or something so we can get a bit of an idea of what it will actually look like, maybe that will clear of some of the speculation as to what Skyriim will be like.
awesome! lol its funny how everybody is pretty sure of everything, some bethesda employees must jump on here and think "hot dang, these kids are good!"
Or they could all be laughing at how far off our guesses are, considering that the things that people are supposedly "sure" of are based on speculation founded on lore and some real life locations with terrain similar to what they expect Skyrim to be like.