Based on the press release description, I get a bit of a Demon's Souls vibe from the multiplayer setup, but I'm sure it won't be anywhere near as punishing as the RPG.
Mindjack is a unique action shooter that will push the boundaries of the third-person genre with its thrilling co-operative gameplay, mind control abilities and other incredible surprises. The game will effectively blur the line between traditional single- and multi-player gameplay, creating a campaign experience where non-playable characters can, at any moment, transform into human-controlled allies or gun-toting foes.
A new "Visual Works" trailer can be viewed below:
BOOM video 7032