I'm not sure if this is news to anyone but me but I'd like to point out a few things:
Firstly, it's been confirmed that we will indeed be receiving the Mercedes DLC for Mario Kart 8. Good news? Great news? Bad news? I'm of a few minds on this one...
Second, E3 came and went with not so much as a peep on that rumor of new character and game modes DLC. Either these were simply a well put together hoax, or Nintendo isn't ready to reveal much more on it yet.
Edit: It's been brought to my attention by a few commenters that the DLC leak was fake, I'm still looking for info on that and will provide a link.
That's it. Just want everyone to be informed.