I agree that Solstheim was rather boring in comparison to Vvardenfall. It was just a bunch of rocks and ice and... more ice. I'm positve that Skyrim will be a lot like Alaska or Iceland. There will be a lot of snowy mountains and glaciers, but there will also be hotsprings, large, grassy fields, pockets of forest, and everything in-between. Making Skyrim nothing but a snowy wasteland like Solstheim would be a very poor design decision by Bethesda.
I'm trying to imagine Skyrim being cold, but at the same time, very unique. Vvardenfell is very unique and so are(is, are?) the Shivering Isles, so I know Bethesda can create something unique. However, could they make Skyrim very unrealistic and alien, like Vvardenfell and the Shivering Isles, in a way that could make sense? I'm sure Bethesda can be very creative with frozen climates if they want to, but with Skyrim being the homeland of the Nords and the Nords clearly being made in the image of Viking Culture, would Skyrim having an interesting, magical landscape make any sense? The Nords aren't very magical and I personally don't find them to be nearly as interesting as the various Elves, so I'm currently picturing a frozen wasteland with some non-snowy(but still cold) areas, castles, architecture resembling Bruma's, mountains, pine trees, and Nords. I wouldn't be surprised if Bethesda turned Skyrim into an oversized Solstheim(with some of those areas you mentioned). Even with what you describe, Skyrim sounds boring. Didn't we have enough familiar landscape in Oblivion(at least Oblivion's was't all frozen)? Couldn't Bethesda have some familar areas and some alien areas in Skyrim? I could live with the forests, swamps, meadows, and snowy mountains of Cyrodiil as there was some variety, comfortable and warm variety(waterfalls were stunning in Oblivion). If Skyrim is like Alaska(still mostly frozen), then it will be quite boring and uncomfortable. Deciduous forests and swamps in Oblivion are boring, but comfortable, and nice to look at. Snow with some forests and grassy fields would be boring, bleak, and uncomfortable. I just can't stand snow and with the current picture I have Skyrim that I have in my mind, I'm thinking Oblivion will be more varied.
Rhekarid, I said Skyrim is frozen(frozen soil), not entirely snowy. That Nord I mentioned failed to mention any non-freezing parts of Skyrim, he just implied that Skyrim is freezing.