"Guerilla have 3 games on the way. Only two of them are Killzone"

[Solid-Stark]

Imo the best news out of this is that Guerilla have grown and are now a fantastic developer capable of making more than 1 game at a time (Kz 2 and 3 were great)

Were probably looking at KZ4 for PS4, KZ Vita, and new IP for PS3 (E3 reveal). I remember the news of Guerilla working on a new IP goes back to mid last year. It would make sense to establish the new IP this gen, and continue it on on future platforms because eventually Killzone will have to be let go.