A multiplayer version would be nice... but it wouldn't really be the same game. You can't exactly have the same kind of quest experience anymore. It would just be a few NPC merchants and a bunch of human players online looking for a fight. Certainly fun but not the same game. By controlling the user experience, the programmers can add much more depth. To each his own, though. I might give the multiplayer mod a try sometime.
[Large text I started to type about expanding the map] ... I should start a new thread. Here it is:
Vast New Land Expansion (possibility)Anyways, dual weilding would be tough to animate and I think they should require you're either an expert or master of blade before you can even get basic dual weilding... but yes, it would be a great addition.
Destructable objects and environment is an awesome suggestion!
Other rideable creatures (without needing a mod) and flying creatures (maybe even rideable, flying creatures) would make an interesting addition to the next chapter of the Elder Scrolls...
...but I'm not quite done with the possibilities of this one yet. There's still so much we could be doing with what we have.
