Director Junichi Masuda ended any rumors that the new handheld would do more than simply play the game like a DS.
Junichi Masuda, director of the upcoming Pokémon Black and White, has confirmed that those titles will not feature special content when played on a 3DS. "Other than just being able to play the game normally, there's nothing special if you use a 3DS," he stated.
Nintendo has previously offered some enhanced content in their handheld games that released alongside a new system. For instance, The Legend of Zelda Oracle of Ages/Seasons, for the Game Boy Color, featured the "Game Boy Advance Shop" when played on a GBA. The Game Boy Advance title WarioWare: Twisted! had a secret bonus movie that was unlocked when played on a Nintendo DS.
Pokémon Black and White was released in Japan last September, and will be released early March in western territories. Nintendo 3DS will be released at the end of February in Japan, and at the end of March in western territories.