Even as a retailer I found it confusing as to what that book actually was supposed to be. Turns out, it's reprints, adaptations, and interviews. The adaptations could have been done smaller and cheaper, the interviews could have been online, and the reprints don't feel necessary.
I can't recall, but I think it might have said January, but it came out only a few weeks ago. So it was late, too. It was Goodman Games, not WotC, so they probably overpaid for the licence and had to gussy it up to justify.
If you come up with an adventure you wanna run, I'm in.
BTW, Anyone interested in the Pathfinder 2 playtest? I've never played PF, but some of it looks interesting.