"Hey Siri" support and possibly wireless charging case alongside AirPower charging mat.
AirPods and AirPower: Everything We Know
Apple's Online Refurb Store Outage Reaches Third Day [Updated]
The outage affects all Mac, iPad, and iPod models, as well as clearance products, and appears to extend to Apple's online stores for every country in which direct sales are available. Individual pages for refurbished models simply list the products as "out of stock".
The reason for the complete absence of any refurbished products through Apple's online store remains unknown, and it is unclear when that status might change. But with the outage now in its third day, increasing numbers of customers hoping to take advantage of discounted pricing are finding themselves out of luck.
We've contacted Apple to inquire about the status of refurbished products, but have yet to receive a response.
Update: A number of MacRumors readers report being able to see stock in the refurbished store, while others viewing the same pages are seeing no results.