Imo, no coop. I have always loved Larian's RPGs due to the immersion into the world they were able to give me, in single player. Especially with Divine Divinity, not quite the same with BD, but still. I don't think a co-op mode would be that great, unless it was made like Dungeon Siege's multiplayer mode. But even that wouldn't be as great as just the single-player experience the game could offer if Larian just focussed on that one. I mean, even a HUGE software house like Bethesda isn't working on multiplayer yet, and you want Larian Studios to do that. Naw... I don't think we need a co-op mode... yet. Divinity II sounds VERY interesting and innovative indeed, there's no need to add a co-op or multi-player mode. Maybe in Divinity III, who knows :P