Sony to push for 16 million PS4 shipments in 2013, say sources
http://www.digitimes.com/news/a20130304PD221.html
That's a lot of PS4. 16 million annual shipments seems to signal the ability to launch worldwide in window of a few months if not everywhere at once.
16 million would be well over what they would hope to sell in 2013 calendar year. Dunno where digitimes pulled that info from.