I play a stealth styled character

Marksmen (gotta love that feeling of your arrow flying 30m through the air for a head shot)
Illusion (for the Chameleon and Invisibilty spells)
Light Armour (goes without saying)
Sneak (coz I'm a wimp I suppose)
Lock Picking (It's the way a gentleman enters)
Smithing (I'm assuming armoror will be included in this class plus making your own weapons sounds cool)
Two Handed (for when sneaking goes a bit [censored] up, two short swords is the way to go)


I also use detect life as it also helps with sneaking. With Mysticism spells being reworked into other spell schools not sure where it will be 'hopefully illusion'

Battlemage Character:
Heavy Armor
1-Hand (Blade)
Smithing
Destruction (everything, fire, lightning, frost, damage health, etc.)
Restoration (healing mainly, maybe fortify skills later on)
Illusion (Invisibility, Charm to make up for lack of sneak/speech)
Alteration (Defensive spells to become the ultimate mage/warrior tank; if you've played DA:O, then something like an Arcane Warrior; will also focus on open lock spells)

Later on: Conjuration (if it's been improved), otherwise Enchanting

I don't know. Game have not come out yet.

Conjuration
Destruction
Restoration
Illusion

I'm actually glad there are no classes...if you only want one skill, you can focus on one skill. If you wanna focus on 10, you can and still level. Makes it easier to make a civilian character, I would just focus on Smithing, Merchantile and Speechcraft.