Rather than let this thread end up under the bridge, so to speak, we should decide what the next theoretical/wishful thinking complete book should be.
It seems logical that another warrior-centric one should come out, given that Divine, Arcane and Skill oriented characters got one, but I would kind of like to see "The Complete PHB II Classes". As much as rules and option bloat has irked me in 3.5, I love both the PHB II and the DMG II and some interesting options and variants on the Beguilder and Knight in particular would be of interest to me.