Multiplayer/Co-Op & Frictional Games? NO!!!

[JPPaperstacks]

I think a 2-player-coop would work pretty well. Remember how Resident Evil or Alone in the Dark used to give you two different singleplayer stories depending on which character you chose? In a coop-mode these two stories could happen at the same time. I'd definitely like to try that.
Just like in any other coop-game the experience would just depend on wether you have found a good partner to play with. Look at all those "funny" playthroughs uploaded in hundereds. Just don't pick one of those guys but someone in a similar mood as you and you should have a great experience.
A real coop-mode sounds far more reasonable to me than playing the same singleplayer while chatting on Skype at least.

The two stories happening at the same time is an interesting idea, if not just an added character that begins in secret areas that you encounter throughout single player but can never really get into- and travels through those secret areas, which are totally connected and window the other path, interacting with things that could help the other player or stop them in their tracks. Say one option would take the heat off of a player and make the monsters less common in his area, by blocking off an entrance that causes the servants to go in the only other direction they can- towards the other player, in large waves, forcing him to react with some other course besides hiding or running, blocking doors with larger objects, or the usual. Even if they completely avoid multiplayer and co-op, and I'm certain they will; they could at least have some NPC's that give us some sort of deeper hope than whimpering in shrouded corners and throwing potatoes across the room and running like hell. I wanna see NPC's get ripped to shreds in front of me, or maybe even conquer a grunt or two? At least.