Sony A7rV Preorders:
In US at BHphoto , Amazon , Adorama , FocusCamera , BeachCamera , Buydig .
In EU at Fotokoch , Amazon EU , FotoErhardt , Calumet DE , WexUK . ParkCameras UK .
In Australia at CameraPro , Camerahouse , Sony .

PROAV posted this interesting interview with Mark Baber. Also the Sony official presentation says the A7rV has:

further sharpened resolution, color, and noise performance without compromise

Marc Baber confirmed the A7rV has the best Image Quality seen on any Alpha camera yet:

Sony A7rV Preorders:
In US at BHphoto , Amazon , Adorama , FocusCamera , BeachCamera , Buydig .
In EU at Fotokoch , Amazon EU , FotoErhardt , Calumet DE , WexUK . ParkCameras UK .
In Australia at CameraPro , Camerahouse , Sony .