I started playing with a 5/31/0 Dual Wield spec yesterday and thought I would document it. I am not sure that the simplification of the talent trees is going to be as game breaking/making as people make it out to be. (To be honest the mastery bonuses are not in yet so I have no idea if it will get better or worse.) Frost is definitely going to be a spec to be watching, as it has a lot of nice toys for both DW and 2 hand style play.

I had to remember to switch into Frost Presence, since Blood is now the “Hi, Have I made you mad yet? How about Now?” presence. It is interesting, because the self healing aspect of the DK is gone in this build. The bonus healing we got from blood presence is completely absent now, with only Death Strike having healing abilities. I am not sure how this will change leveling, but it does make DKs much more squishy on normal content. I will try to get into an instance and see what happens. (Well that and I want to see how tasty this spec can be in DPS land.)
edited to add: They appear to be still processing it, please have patience!