So with the detail and info in the Inquisitors handbook and the Radicals Handbook...
Can we expect a Hive Worlders handbook on Scum and to-be Guardsmen, Nobles and so on? Perhaps a lengthy book on the lives of people on Hive Worlds and details on specific Gangers, Groups, Organizations and layouts of Upper, Middle and Under hive locations?
What about a Adeptus Mechanicus book that give us details on Forge worlds and the people whi live and follow by the ways of the Machine God?