Gamespot has posted a lengthy video (37 minutes) presentation that’s chiefly about Blizzcon. It’s mostly focused on WoW, but there’s some good D3 stuff as well, including the highlights of a interview with Christian Lichtner and a very weary looking Leonard Boyarsky. The D3 interview starts at 26:35, and runs until 32:07.
Thanks to Starving Poet for spotting this one. The video is embedded below.