Christian Origins and the Question of God series, namely, his big Paul book. I remember chatting with Scot McKnight when he was in Ashland and he mentioned to me that he was reading Wright's manuscript as it was in process (250 pages or so), and his goal was to have it wrapped by the end of this year.
Well, apparently, the good bishop has been spending time at CTI (Center of Theological Inquiry)in Princeton working on just that! Here is a two part interview recently posted on YouTube. Enjoy!