MUCH more so in Morrowind, frankly. Especially in the smaller towns and villages.
I certainly hope that we see a lot of distinct and interesting settlements.
In my mind, Solitude should be a sort of cold, gothic castle town with dark skies and clustered foreboding stone houses, and Whiterun should be a sprawling tundra city of thick wood buildings and long, fiery mead-halls, stretched out over the vast open frosted grounds and halcyon winter skies.
We've already seen bits of Riven and Markarth, and they look great. Extremely promising.