Two things might stop me from buying it or might make me buy it.
1. The combat system. It needs to be like Oblivion and not like Morrowind. I liked the whole being able to hit the enemy every time you swing or fire a weapon. This was a big fun kill in Morrowind for me as if it was a roll of the dice to determine a hit or miss. Fuck that!.
2. The setting needs to be more like Oblivion, forrests, lakes, snowy and non-snowy mountains, caves, etc. I disliked the whole Morrowind and Shivering Isles settings of giant mushroom styled trees and stuff like that.
I partly agree with the combat system. I think it should still be a bit challenging when it comes to lower levels in whatever type of weaponry you choose to use. At least put where you have to level up to become decent in the different types.
On the same note, they can keep the combat easy or hard, just as long as they bring back all the different types of weapons like they did in Morrowind. I love variety. Especially when that variety includes spears and throwing knives and darts. Same with the clothing. I want to be able to layer my clothes. Instead of having only one layer and unable to put a robe or whatever on over something.
When it comes to settings Morrowind had a decent array of environments, especially in the expansions. They have lovely coasts, islands, even grottoes if take the time to find them under the water, snowy places more up north, and swampy places such as the southern areas. Then you had the massive volcanic, dead area in the middle, but that was for a reason. It was being destroyed by Dagon.
Oblivion had the same, especially being on the mainland. Swamps, wintry areas, lovely forests, and mountains. As well as the lovely coastline in the south-west.
Skyrim is snowy, mountainous terrain. Very cold and most likely snowy forests. Maybe some areas might be less snow and typical forest, especially since Elven races live in Skyrim. They enjoy their forests.
Game Informer next month will have this game as it is the cover story.