The NDA we all had to agree to forbids me saying too much, but I will say that I'm duly impressed with the basic rules we've gotten so far. They actually feel like D&D again, which is a major accomplishment after the train wreck that was 4e. The rules thus far are unequivocally basic, but they are fairly complete, though lacking character gen mechanics--playtest characters are pre-gen. I wouldn't be sorry to see something very similar to this initial document published as a new D&D Basic boxed set, moving forward.
Starting basic and building off of that framework is an absolutely aces way to approach this playtest and I look forward to more "bolt ons" coming in the future.
Of course, because they've done so much to make it an RPG again instead of a glorified overly complicated board game, the 4e fanbois are crying the loudest. I have something to say to the 4e crowd.
You know what? Your game FAILED. Utterly. You could be the biggest fanboi in the world and you can't even sustain the argument against the hard fact that it lost enough fans that it cost D&D its heretofore unchallengeable top spot in the industry. So shut the f*** up and go away; let the grown-ups fix it. Thanks.
So far, so good, WotC. One or two things I noticed in the initial doc that need tweaked, but we'll see how they play out tonight when my group attacks it.