Very promising so far, but it desperately need some more hard work and bug fixes (I got random crashes on SP every 10 minutes or so). There's pony textures missing as well. Some hats that don't show up and so on.
Need long axes 2h or polearms. I was so sad when I picked up Norse faction in MP then my eyes scanned the weapons so hard to find it, but they never saw any Dane axe. Then I figured there is none in SP neither. This is a really bad point because those are both historical and emblematic, for Saxons or Norses likewise.
I would also suggest to reconsider giving females that big protein rations. I picked a Tall Norse Male character thinking I will tower everybody then I tumbled upon this tavern lady, I was like "wtf, look at those broad shoulders, I don't seek any trouble ma'am". Seriously you might want to reconsider that.
Armors and stuff need also more attention, you did so good in terms of diversity and eye-candy on Brytenwalda (like this Wolf Lorica and such) adding belts, leather garments, pouches and buckles and so on. Also no Norse helms with mail masks
This is sad come on.
Finally, it would be wise to put in some classes to pick in the MP because I can foresee some real issues there.
So I would say 5/10 so far (4 really but 1 more for the potential that will increase with patches hopefully). I like the game for its potential and all the new stuff but it needs more work on those aspects to make the whole thing a really good dlc. Keep it up.