It's a goof. No one will actually buy these at retail...this is something Nikon will keep in the catalog at retail for "bragging rights". Similar to the unobtainable 13mm 5.6. I would expect that in reality, Nikon will rent or hand these out to NPS pros at major events just to try to look fancier than Canon.
Since Canon's equivalent is half this price, it's kind of amusing that you can go buy Canon's lens, plus a pro Canon body, and leave it on the lens for the price of the Nikon...
I just cannot believe that yet another Nikon FX zoom was announced this week and no love (still) for DX.