Hidden in Atari's fiscal 2009 financial report, there was a tiny but informative nugget on CD Projekt's The Witcher 2. According to the report, the action RPG is "planned" to land on PC in "Spring 2011." The report included no further details, though Atari's fiscal 2010 ends on March 31, so expect the game sometime before then. Also, no mention was made of a console release, though CD Projekt stressed earlier this week that it still plans to bring the game to consoles.
Source -- Atari Second Half and Full Year 2009/2010 consolidated results (PDF)