According to CD Project RED, The Witcher 3: Wild Hunt will not have co-op multiplayer.

Speaking to StickSkills, director Konrad Tomaszkiewicz said, “We’re focused on a strong narrative and this is something multiplayer games, even the ones offering cooperative play, do not offer at this point.

“When we tell a story we want it to resonate within gamers and some choices of plot elements we show are best to be experienced alone with no-one to say ‘I’d do this differently’ shouting behind you. Cooperative play introduces an element of dissonance to the choice and consequence process and we’d like to avoid that.”

I think The Witcher 3 would have been great with some co-op, especially since it will be the first Witcher game to feature “a living open world larger than any other in modern RPG history”. But I guess we will have to go it alone for this one. At the same time, not having co-op or multiplayer will allow CD Project RED to really make the single player experience a lot better, so maybe it's not so bad after all.

The Witcher 3: Wild Hunt is slated for a 2014 release on the PlayStation 4, Xbox One and PC.