Posted by Colin Johanson
This project was delayed in favor of having the specific folks required to build it skill-set wise working on solidifying the core of the game. You'll hear more about our ecosystem in the future, but we're not actively working on this project, in favor of making sure the core game itself is as fun and rewarding as possible.
Edited to add: We'll discuss what sort of projects we're doing instead in more detail in the blog post later this week, and even in more detail as the Jan/Feb/March releases get closer.
Bummer. Looks like we won't see it until summer at the earliest now.