Well, that didn't take long. Just a couple of days after Google stopped pre-orders of the Nexus Player while it waited for the FCC's all-clear, its Android TV puck has received approval. There aren't any surprises in the regulatory filing, but it should let you both pre-order the WiFi media hub soon and (hopefully) get it around that originally promised November 3rd release date. If you were worried that you'd have to make do with a Chromecast for a little while longer, you can relax.
Update: And now the Nexus Player is finally available for order again. Though, it's not set to leave the warehouse for another three to four weeks. So you'll just need to be patient.