Congratulations! We were all just trolled by Nintendo Direct
So yeah... there was supposed to be some sort of Nintendo Direct event tonight, but apparently what we have instead is a video revealing the DLC for New Super Mario Bros. 2 on 3DS.
It looks like it will be broken into 3 packs in Japan, costing 200 yen a piece. They're all new levels specifically for the Coin Rush Mode. We will update this post with the North American version's information when it becomes available, but for now all we have is the above video and a October 2nd release date for Japan.