Aside from the previously announced Super Mario Maker stage, there is also an unexpected return
of the Pirate Ship stage from Super Smash Bros..
These include a stage based on Super Mario Maker (which was shown off a few weeks ago), the return
of the Pirate Ship stage from Super Smash Bros Brawl and a version of the Duck Hunt stage for 3DS players.
Not exact matches
In the story or J Adventure mode the various locations, aka
stages, are linked together by the barest
of narratives triggered by sailing a
pirate ship to each one.
Video presentation
of a lesson observation
of Early Years Foundation
Stage: Children play on a
pirate ship
The Wii U gets an exclusive
Pirate Ship Stage, and both versions
of the game are getting one based on Super Mario Maker.
There are opening slots for three new characters and also total
of 4
stage slots likely 2 omega and 2 normal, unclear from the data the
Pirate Ship taking two places, I would assume yes.