I hope that Iwata meant that the disc will be packed with content at launch, not that there's room for more content as DLC.
This isn't an anti-DLC crusade; Mario Kart is perfect for DLC tracks. Rather, I remember reading that the team currently working on Mario Kart 8 would be interested in making a new F-Zero game once they're finished, and I'd like them to get right on that instead of messing around with Mario Kart DLC.








