From what I have seen so far, Skyrim would not need an Overhaul to correct its problem, like what Oblivion needed, but some might want to change aspects of its game-play and game-content to add some flavor, for different tastes, and no doubt we will have a lot of new content, like new armors, weapons (pole-arms? crossbows?), land mass, quests and so on...
And I look forward to my experiences with its leveling system.
Birth Signs? Backgrounds? Different starting place, gear and money depending on those choices?
And we might even get lucky and have something like what I have suggested in
http://www.gamesas.com/index.php?/topic/1181482-loose-your-touch-or-gain-it.