Actually, I've talked to Ralph about this issue from time to time, and he didn't seem to be against this issue; actually, he had some corrections and extensions for a new edition waiting in his drawer (and, actually, I have a couple of corrections I would like to add, but anyhow...). For some reason, it never came to the phase of "yeah, right, let's do this now". It's probably a timing issue, and a question of financial viability.
What I remember is that he claimed to not have continued because the guru book was downloadable from pirate bay as a high resolution scan of the whole book.