Expect a big announcement from Sony about its next-gen PlayStation 4 console this month or possibly in early May, a source familiar with the company's marketing strategy told PCMag this week.
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GDC was probably the last big stage for the company to talk up the successor to the PlayStation 3 before the E3 gaming conference in June, unless Sony manufactures its own event. That's precisely what Sony plans to do, according to the source, who said late April/early May will be the likeliest timeframe for a full-blown launch of the PS4.
http://www.pcmag.com/article2/0,2817,2417397,00.asp
Edit: Hopefully we get a price and a UK release date of 2013 (Doubtful, I know

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