A retailer in the US, Media Mart, has put up an advert claiming that the PS4 will release on November 13th. Couple of days back an advert in the British newspaper, The Sun, listed the release for November 21st. Only a few weeks ago, Sony stated that the PS4 would be coming to the US first, Japan second and finally Europe sometime in early 2014. Sony themselves haven’t announced date yet. So I guess we just have to wait for an official statement from them.
Below is the picture from Media Mart.