Combat Skills (?)
One-handed weapons
Two-handed weapons
Smithing
Magic Skills(?)
Enchanting
Alteration
Restoration
Destruction
Conjuration
Illusion
Stealth Skill(?)
Alchemy
Speechcraft
Sneak
Marksman/Archery
Here is something. 6 Skills for each major area. So is alchemy going to be stealth? I could possibly understand that considering how poisons are related to assassins.
On the screen shot from the new update, http://img256.imageshack.us/img256/222/skillsmenu.jpg, you can see a skill to the far left that ends in "AFT" which we can assume is "SPEECHCRAFT"
So we know all magic skills and probably 3 combat skills. Speechcraft would most likely be stealth then.