I would -love- for TES V to have an online campaign mode so that we can play with our friends as if we were playing single player. Of course, the obvious mechanics would have change with the NPCs such as health, damage etc. - (They'd scale according to how many online friends were playing with each other). I believe this would take the series to a whole new level. Considering gameplay these days is based around online playing anyway, it would surely be beneficial for the company.
Post your thoughts here if you have any. - Thanks for reading.