This would be incredibly difficult to do with the current design to how a TES (or Fallout for that matter) game is made, to accurately depict the surroundings, the game would have to completely get rid of Interior Cells, which would be impossible this late in the game, plus this would more than triple load times to keep the same amount of content.
The only alternative to doing the above method would be to use the same concept with glass weapons from Oblivion. If you want, pop in Oblivion and get your hands on a Glass mace. You will see the reflections of trees and a road in it. This was humorous because wherever you were (including in Oblivion itself) this same reflection was displayed.
Well, for Skyrim, it's not such a big deal, because in medieval times the further north you went the smaller windows became and the fewer there was of them, simply because back then there was no way to have big windows without freezing the $#%^ out of your house. Also, in the winter, what little windows people had were completely covered by frost, thus you couldn't really see anything. So not having grand views out the window fits Skyrim's theme.
The next TES might be a different story.