Bulletstorm dev People Can Fly linked.
Some sort of Killzone project — most likely to be a remake of an older entry in the shooter franchise — is currently in the very early development stages, and Bulletstorm developer People Can Fly is probably making it.
Sources speaking to outlet MP1st claim Guerrilla Games is collaborating with a third-party studio on a Killzone remake, and there are strong indications it's People Can Fly. The Outriders team is actually already confirmed to be working on a
