Nintendo’s official Japanese website has confirmed that new levels based on Super Mario Odyssey in the upcoming Switch version of Captain Toad: Treasure Tracker will in fact replace some of the existing levels.
The Super Bell Hill, Conkdor Canyon, Shadow-Play Alley, and Clear Pipe Cruise levels in the original Wii U were all based on Super Mario 3D World locations. However, these are all being swapped out in favor of the new Odyssey levels in both the Switch and 3DS versions of the game.
Of course, this means that (for now) the only way to experience the the Super Mario 3D World levels is on Wii U. Meanwhile, for those interested in the new versions, demos of the game are currently available on both the Switch and 3DS eShop in Europe and Japan (there’s no word yet on whether the demo is coming to America).
Captain Toad: Treasure Tracker is coming to both Switch and 3DS on July 13.
Source: Nintendo Everything