Earlier today Nintendo of Europe tweeted this:
Good things come to those who wait. #MK8 pic.twitter.com/Or6HeeXkOD
— Nintendo of Europe (@NintendoEurope) June 3, 2016
As you can see in the tweet it has a picture of MK64 and the #MK8 with the quote "". This has led people to speculate that MK8 might be getting a new DLC pack which could be revealed at Nintendo tree house live at E3 this year. While in the past Nintendo has posted some meme tweets like this:
These Tri Force zeroes have cost people many a race… #MK8 pic.twitter.com/8hpE6lQWYJ
— Nintendo of Europe (@NintendoEurope) May 21, 2016
Which also has #MK8 but don't you think that the tweet would have #MK64 or something like that if they were trying to meme? After all other then the #MK8 it's no way related to Mario Kart 8 so it's a possibility.