I think automation is a very real future for MMOs in that streamlining will become a priority. Putting players who are in close proximity at public dungeons or overworld boss areas automatically in a group to receive exp buffs would be a very simple way to cut some of the trouble of someone having to initiate a group and add others to it. In my opinion this would be an incredible feature in the future - and ofcorse an option to automatically opt-out for the lone wolves.