Looks like this went up today. Just a little lore on The Dark City that ends at the latest dysjunction. I'd like to say there has been some correlation between BoLS posting these bits of lore and the armies that are soon to follow...but it could simply be wishful thinking. That said, the week-long Dark Angels focus is over and we have a little time still before Daemons releases; so maybe we hear what the next codex to come is??
Kabal of the Killing Moon