a mmo is a HORRIBLE IDEA and I think would ruin TES but a 2 player max could be awesome, and here is the way I imagine it working basically the players can talk to anyone they want accept quests ect and if they are both talking to the same person you would do something similar to TOR basically a roll off but you should also include a "I'm going to let my friend answer that option" and then who ever wins the roll does the whole convo and the other person doesn't get to make any choices, also I am against making extra stuff for co-op beyond making it work.