Nintendolife a pas compris pareil:
Parts 1 and 2 of the Expansion Pass are purchased together for £26.99 / $29.99 and are up for pre-purchase right now. You'll need to purchase the corresponding pass according to which copy of the game you own. If you own both games and want to access the new areas in both, that means buying both the Pokémon Sword Expansion Pass and the Pokémon Shield Expansion pass.