Due the Kumamoto sensor factory damage the Sony A7 series experienced a serious shortage.
The Sony A7rII will be back in Stock on Sept 27 at Amazon US (Click here). This also includes the great A7rII Deluxe kit (Click here) where you get a lot of stuff for free.
And the Sony A7II is in Stock at BHphoto (Click here).
All new Sony stuff on preorder:
Sony A99II at BHphoto, Adorama. Amazon. Calumet Germany and WexUK.
Loxia 85mm f/2.4 at BHphoto and Adorama.
Tamron 150-600mm G2 A-mount lens at Bhphoto.Rokinon 35mm f/1.2 APS-C E-mount lens at BHphoto.
Rokinon 14mm f/2.8 autofocus FE lens at Amazon and BHphoto.