When I picked up my Bobwhite 20 gauge, the gun shop owner told me that CZ had called the shop earlier that week saying: "Don't place any more orders through the end of the year".
Guess the good news in that is the guns are selling well and the factory is booked... The bad news being new orders may be seriously delayed or not accepted at all. FYI, I once had a shop transfer a gun to a shop nearer to me, with the understanding that I'd buy it if it met my needs upon inspection; it did, so I was all set. Maybe you can wrangle a deal like that, so you do get to inspect it before you commit. If it's something that will sell even if you don't buy, you might be able to get them to help.
Either way, good luck with your hunt for a 28.
Old No7