Time ago we published an article about this topic. Sony expected to deliver 16 million of PS4 for the year 2013. Of course we are speaking about a fiscal year; this is since the console will be out until April 2014. We know Sony, very well, they never have been able to sell their products in the three markets at the same time. Always the Europeans have had to wait for their Playstations, now with PS4 the story seems to be the same.
Digitimes reported that Sony could have decreases their expectations, because the supply chain hasn’t still received instructions for the shipment from the Japan-based vendor. Obviously a delay in the process is a feasible explanation.