At first I thought if you have the money and really want to upgrade, do what makes you happy. If money is no object than that helps too!
Another thought is the money you would have spent on a newer Rogue, the $5000-$8000 perhaps could be used to buy the things you like for your present Rogue.
Except for the intelli-key stuff, you can do the other things like convert to leather seats, way better GPS display, etc More money to pimp your ride per se.
Better back-up camera system if there is one, DVD entertainment.........or what not. Maybe cheaper in the long run too.