You haven't missed anything. Unfortunately, the much heralded publication never appeared. This is a rather familiar experience for those of us acquainted with Project Hindsight over the years. Its not at all clear the source book will ever materialize now. The Schmidt's seem more focused on selling recordings of his workshops or old track translations.
Project Hindsight has been in virtual suspended animation for some years. Since the release of the Antiochus translation (Definitions and Foundations) as part of TARES in 2009 all has been quiet.
http://www.projecthindsight.com/products/tares.html
It was implied the next translation would follow a few months later but nothing has appeared in the last 3 years.
Robert Schmidt has also stopped participating on the ACT forum where he is in theory the hellenistic astrology moderator.
I do think its well over due that that Robert Schmidt offered some kind of public explanation what is going on and why TARES has apparently run into the ground.
Mark