Sony will announced the ps4 on feb 20th, kz4 might be one of the first games for it.
Guerrilla Games has revealed that the bulk of its staff are working on "the next Killzone instalment" with Steven Ter Heide, senior producer on Killzone 2 and 3, stepping up as the game's director. The news comes in the latest issue of Edge. This news, combined with a previous Edge report stating that "one major Sony-owned studio has now ceased PlayStation 3 development, its entire focus having shifted to the console's successor," could point to the tantalising prospect of Guerrilla Games working on Killzone 4 for PlayStation 4. The Sony-owned studio announced some time ago that it is working on a new IP, which is also discussed in the magazine.