Killzone 4 on PS4 in 2013 or 2014
Killzone 4 is in development at Guerrilla Games and might be a launch title for the PlayStation 4.
The game could be revealed as early as later this month during Sony's PlayStation Meeting event in New York City, where the PS4 itself is rumored to be revealed.
The latest Killzone title was Killzone: Mercenary, which shipped in September for the PlayStation Vita. The most recent core entry in the series was Killzone 3, which Guerrilla Games developed for the PlayStation 3 and launched in February 2011.
Guerrilla Games has long been rumored to be at work on Killzone 4. A report from November 2011 said Killzone 2 and Killzone 3 senior producer Steven Ter Heide will serve as game director on the new title. It is not clear if this is still the case.