There’s a special treat for Japanese Switch users. Pokemon Sword and Pokemon Shield are now available to pre-load in the Japanese Nintendo Switch eShop. The file size is 9.5 GB. As for languges, Pokemon Sword and Shield support Japanese, English, Spanish, French, German, Italian, Korean and Chinese. Pokemon Sword and Shield is slated for a Nintendo Switch release on November 15th, 2019.
Pokemon Sword & Shield are now available to pre-load on the Japanese Nintendo Switch eShop

Can’t they leak the game then?
Yeah they can it’s how sun and moon got datamine like that and free copies of the game could be played before they launch but going online suddnely ban them if I remember correctly
Tried to look it up, and that’s what happened with Paper Mario Splash too. but unfortunately, Let’s Go was able to be preloaded but couldn’t be encrypted and datamined.
I hope they don’t.
9.5 gb because they don’t know how to compress and surely put a ton of unnecessary files… Gigantamax aside