It will also include New Super Luigi U.
The latest in the round of Wii U ports headed to the Nintendo Switch will be New Super Mario Bros. U, which was actually a Wii U launch game back in 2012, and was also, in fact, leaked not too long ago. The Deluxe edition will include all the content from New Super Mario Bros. U and the expansion New Super Luigi U, for over 150 levels for players to make their way through. Collectively, these represent, in spite of the distaste many have for the New Super Mario series, among the best 2D Mario content we have ever received.
The new package will also include Nabbit as a playable character for the very first time in a New Super Mario Bros. game, as well as Toadette. Co-op play will be maintained, and you can play the game entirely with a single Joycon (which makes total sense, since the original could be completed with a single Wii Remote). Online functionality hasn’t been confirmed, and it’s not unreasonable to suppose it won’t be in the game.
New Super Mario Bros. U Deluxe launches on the Nintendo Switch on January 11, 2019.
— Nintendo of America (@NintendoAmerica) September 13, 2018