What happened to these? They were awesome to collect. Global drop, trade-able, and sold in the marketplace. I also liked how they were there for a certain time frame. They even came with achievements. But why no new ones? The next batch should be PoP God Models (booby taunt in guild halls...come on). Let's make it happen!
Pretty sure they're seasonal. The House of Thule and Fear plushies didn't last around long enough compare to the Denizens. I have two stacks of those dumb chests.