This is either cancelled, or the pre-orders have matched the planned inventory. It's not a limited release as such, so it's pretty unlikely it has sold out.
There is zero mention of this set on the official Fox sites so I'm picking it's been canned.
Confirmed on another site, this does in fact include the figures pictured. Which makes me super happy. Although I’ve just had an email from Amazon stating DHL Express are dragging the chain and delivery to NZ will be delayed