Reason is still unclear but there will be a delay in the Sony RX1R II shipment, since according to the recent rumors the camera production is halted due to some unknown cause. This Rx1RII camera is now out of stock from the most of the stores of US, But according to the Sony Japan next batch of shipment will be in be resumed in Mid-January, 2016.
Actual words of Sony Japan:
“Regard a digital still camera that gave a new product announcement on November 6, 2015 “DSC-RX1RM2″, became a thing where I am allowed to postpone the launch by the convenience of on production.
Be released shortly before assistance, deeply apologize that you apologize for any inconvenience to customers.
Regarding the release date, we will guide you on again our website to prospect the mid-January 2016.”