Like other camera releases they do not have all the accessories available right away especially if it is a new design. They are just trying to get the new product out. Does not make much sense to me but it is what it is
It's supposedly starting to just hit dealer inventories now. Nikon's pipeline is bottlenecked - bad execution when you're talking about a new model introduction. You'll probably see them within the next month. They can't go into the holiday rush missing key accessories - makes for a very grumpy gift opening morning in December.