Jaos on 18 June 2009
Wii Fit had obvious possibilities to be improved, Galaxy was seen as nearly perfect by a lot of people but not by Miyamoto. That's why they got replacement / sequel. As long as Nintendo doesn't feel like a new MK would offer something new, they won't make one.
I think Nintendo could improve Mario Kart in a very cool way: User created content. Like MK tournament track remixes.
