Well there have only been 2 officially announced classes: The Oni and The Warden.
However, the devs have said that each culture has 3 classes looking at the trailers/walpapers/ect. it looks like the divide may be this:
The Chosen:
Heavy Weapon: Katana user
Two weapon: Katana/wakizashi user
Spear: Naginata user
The Warborn
Heavy Weapon: Dane axe user
Two weapon: Two hand axes user
Shield: Round shield and viking sword or hand axe user
The Legion
Heavy Weapon: Greatsword user
Shield: Heater shield and either an arming sword or a flail user
Spear: Halberd user, maybe, only seen in one piece of art so far.
So it looks like you'll have your wish of a two-weapon fighter, in two factions anyway.
I should note that, that only the Oni and Warden are announced so everything I have written can be changed before the game comes out.