Now, with a little more than a fortnight to go, it appears that both titles are available for pre-load from the Nintendo Switch eShop.
According to the Japanese store listings, buyers can expect each game to take up 9.5GB of space, making for a grand total of 19GB should both titles be purchased.
For the sake of comparison, the Pokémon Let's Go titles weighed in at under 5GB each.
Although you can pre-order Pokémon Sword and Shield right now from the Japanese Nintendo Switch eShop and get the pre-load process underway, listings for these games have yet to appear in the European and North American stores.
Source: Nintendo Everything via Nintendo Life