Update from Bryan Beller:
See, I told you the people at Alfred were cool. Who else would publish a Dethklok bass transcription book?
Not only are they doing it, but they asked me to help them provide four bonus "live version" transcriptions, because what I do on bass for Dethklok live is pretty different than what's on the original tracks on the record. The songs for the book were chosen specifically because they're the most interesting on bass to begin with. Plus, the book will have special written introductions from both Brendon Small and myself.
I'm pretty sure this is going to come out in time for the January NAMM show. Look for it in early 2011.