Pretty sure no one was expecting something like this. December’s Nintendo Direct announced that Sonic Lost World now has a Yoshi themed stage (combining elements from both Yoshi’s Story and Yoshi’s Island) as free downloadable content. What came as more of a surprise it’s already available right now in the E-Shop. They also teased that there will be another special DLC stage available early in 2014. They didn’t say exactly what it would be, but I think it would be safe to assume that it will be a Zelda themed stage, based off of this image below shown during the announcement.
(Notice the Triforce symbol on the wall)
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After Iwata said there would be a 2nd dlc, he said that when playing multiplayer, you could LINK!!!!!!!! your 3ds and wiiu together… So who knows what it could be 😛