Guerrilla Games has been quietly hiring some of the top talent behind Tom Clancy’s Rainbow Six: Siege for a super-secret project. Simon Larouche – who previously spent three years at the Dutch developer working on Killzone 2 – served as the game director on Ubisoft’s smash tactical shooter, and has been working on an unannounced project for the Horizon: Zero Dawn maker since February of this year.

He’s been joined in Amsterdam by fellow Siege developer Chris Lee, who’s been recruited as a Principal Game Designer at Guerrilla Games. There’s lots of speculation about what this could mean: will Aloy’s next adventure have online? Could a new team be working on reviving Killzone? Has the studio got something fresh in the pipeline?

Worldwide Studios president Shuhei Yoshida did talk recently about Sony wanting to do a better job with its multiplayer titles, so perhaps Guerrilla Games has been tasked with creating an online experience – potentially for the PlayStation 5? We won’t know until everything’s out in the open, but it’s an interesting development to say the least.