Most of 3D mario games play completely different from each other, they would also have to adapt a bunch of stuff from the new games to the 64/Sunshine style, pretty much a bunch of gameplay elements would end in the chopping block unless they cheap out. Mario Maker itself only happened because most of the old enemies from SMB 1, 3 and World were recycled a hundred of times on the NSMB games, SMB2 and Land were both demoted to just a power-up, also they shoehorned a 3D World style on the sequel pretty much confirming they will likely never make a 3D maker.
Zelda Maker is more likely to happen though, but I doubt it will be fleshed out as Mario Maker, and will likely cheap out with just Dungeons, sad they never saw any potential on that concept while developing BOTW:
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