Japan's getting Super Mario Advance 2.
Which is Super Mario World.
Even though we already have the actual Super Mario World.
If that redundancy is gonna happen, there's still a chance we'll get actual Yoshi's Island.
And to be fair, the GBA VC on Wii U will likely allow for custom controls, so that'll be fixed. And the GBA port does have 6 new stages, so that's cool too.