Was always talked of as being on the cards, so hopefully will still be, and hopefully fairly top of the list. Would be very handy for when you have an explorer, as heading out into the big black can be very samey, and to push any interesting distance, you lock yourself into that for some time as it would take ages to get back - it would allow you to pop on to a second character for a bit of trading, shooting, seeing people, just to mix it up some!
Plenty of games I've bought multiple copies of, but that's for simultaneous play by more than one player (eg the Call of Duty games), for asynchronous play where folks take turns, I do think a game shouldn't insist on two copies. So here's hoping for news, and good news at that, once the holiday time is over!