Update #1: A seminar transcript from the “Charting the Course: An Edition for all Editions” seminar has been posted based on liveblogging and tweets.
Update #2: Geeksdreamgirl has a recap of not only the D&D Next seminar, but a (necessarily vague) account of having played a game in the new system.
Update #3: A transcript of the Class Design seminar. We’re finally beginning to see some specifics. Doesn’t sound nearly as old-school as some of the hype might have indicated. Warlocks? Wild talents? Rituals?