Killzone 2 and 3 are for me the best games on the PS3: Dirty atmosphere, crashing shootouts, great animation, driving music, exciting levels, DTS Sound tear the cabinets and a 720p optics to kneel down, especially in the cutscenes. And the linear gameplay has the voltage extremely well done and did not bother.
Conclusion: Hopefully that does not mean very poor 'Shadow Fall' the end of the series, as Sony can keep a successor in this style confidently. Hopefully the next episode 'back to the roots' it goes, and maybe even in the graphic quality, as it has the front of the launch of the PS3 (precalculated) shown graphically incredibly good-looking trailer of Killzone 2, of course, been so NIE on PS3 possible would.
Anyone looking for a really good shooter on the PS4, the accesses to the rather wacky 'Wolfenstein: The New Order', the atmospheric 'Metro: Redux' or the open-world Kracher 'Far Cry 4'.