There might be a way of dumping the worlds data somehow would have to see if any pro homebrewers would probably know?

there is a way but you need windows pc programs: mcc tool chest, MCAselector, ja2be(ms store), universal minecraft editor(old free ver), and wii u map manager x. wii u programs: ftpiiu (tiramisu) before you begin you need to explore all chunks or it wont convert.

aswell you can also use the universal minecraft converter which also cost money but more easier to convert. but you will need the map manager to export set world

ty legend :D