User blog comment:NobodysWarrior/Skyrim Co Op?/@comment-5046408-20130228124958/@comment-3428817-20130302125032

The problem with having co-op is not just limited to the problems Mazekial mentioned. You also have to look at the choices a player makes. Player A may not make the same choices Player B makes, and so on. On the whole, and I've said this repeatedly on the Fallout wiki, The Elder Scrolls games, Like Fallout 3 and Fallout: New Vegas, are meant to have a single player experience. Having a co-op mode, even if Bethesda could properly solve all the problems Mazekial listed, would just muck it up.

For multiplayer and co-op, I think Elder Scrolls Online will fill this bill just fine.