Nintendo of America’s Twitter page reports that this was announced by Mr. Miyamoto & Mr. Tezuka themselves just a few hours ago (at 5:11pm). They said that the four Mario Maker courses seen during the 2015 Nintendo World Championship will be included in the game. This means the rest of us will be able to try out those courses for ourselves. While these courses are certainly a bit crazier than Mario’s standard levels, it is nice that those of us who weren’t contenders in the championship will be able to try our hands at them, too. Watch out though, there are a few dirty tricks hiding in these levels!
Nintendo has also posted a five and a half minute highlights video on their YouTube channel, showing some highlights of the final contenders taking on the aforementioned Mario Maker courses. Check it out: