I really don't know.
I will make my final decision while on the "character creation" menu.
I'm thinking that the most possible will be something between orc,kahjit or nord.
Nord: They are the indigenous people.The game is devoted to them.They are also resistant to cold and Skyrim is a cold,cold area.
Orc: Didn't played Oblivion as an Orc.Orcs in Skyrim look way better and I'm tempted to try out playing as one.
Kahjit: While I had Oblivion since 2006,I only played with a Kahjit at 2011.And I was amazed.I found their Night-eye power pretty usefull,and I can't think going back to have to carry a torch or drink potions all the time. Their "Eye of fear" power is pretty funny too!"