Welcome to PokéCommunity! Register now and join one of the best fan communities on the 'net to talk Pokémon and more! We are not affiliated with The Pokémon Company or Nintendo.
I think they could keep N as having either/or because it depends on the version you bought before. So if you get White 2 and you had White, it would almost seem like the same story. Reshiram and Zekrom are supposed to represent the Yin and Yang. Kyurem represents the definition of "absence of"...