Allow me to echo Stephen Carlson's notice on Hypotyposeis of the good news that the following is out:
Ancient Compositional Practices and the Synoptic Problem
R. A. Derrenbacker, Jr.
It's published by Peeters (BETL, 186) and mentioned in Bob's Blog. I read (own) a copy of the dissertation on which the book is based, and I am looking forward to reading this (even if Bob does underestimate the strength of the Farrer theory).