Found an Array, Hooray! It brings a lot of unwanted attention though, from those Fallen...
Last year Sony made a foolish decision to close SCE Studio Liverpool down, but it seems that concept art for a new project they were working on has surfaced online.
Posted by AGB, the pieces of concept art all revolve around performing heists and it seems that there would have been four main protagonists to play out these heists with.
Little more is known at this stage, but perhaps it could have been a multiplayer co-op title. Maybe it never even made it past the conception stages of development.