In the famous words of my FFL "They'll show up when they fucking show up."
Centerfire has no control over Century Arms, who is the manufacturer. Century probalby gives them a ship date, which Centerfire passes on, and then Century misses the ship date. Not a lot that Centerfire can do about something like that, short of telling folks to stop asking or not giving a date at all.
Centerfire has clearly stated that anyone who had already placed an order will get them for the original $399 price, despite the price increase listed for new guns.
Patience man, patience. They'll show up eventually. i had to wait 18 weeks for a GT receiver that was supposed to take 2 weeks, and 10 weeks for 7.62x39 ammo that was suposed to ship in 3 weeks. AK's and accessories are in high demand now, and I am sure Century was overwhelmed by the popularity of their new rifle.
If you want one badly enough, just cancel your order and get one from a distributor that has them in stock. You'll pay a little more, but get it right away.