Tomorrow is the big day! :D
And my information is going on empty. So let’s do a trivia about the games! ^_^
★ These are the first main series games since Pokémon FireRed and LeafGreen in September 2004 to be released in North America in the fall months, as opposed to spring months.
☆ The localization period for Black 2 and White 2 is the shortest worldwide, lasting about three and a half months.
★ These are the first main series Pokémon games to officially be a direct, numbered sequel to Pokémon Black and White from the same generation.
☆ This also makes them the first main series Pokémon games to have numbers in their titles.
★ However, Pokémon Gold and Silver were initially advertised to be direct, numbered sequels to Generation I, originally dubbed “Pocket Monsters 2”. This was changed later, thus making Black 2 and White 2 the first official direct, numbered sequels.
☆ Because of this, Unova and Kanto are the only two regions to be explored in different time periods, by different player characters (excluding gender counterparts).
★ These are the first main series games in which the player starts at a location in a City, as all previous versions had the player starting at a Town.
☆ These are the first paired versions to have the same Pokémon on the boxart, with the only difference being its form.
★ These are the first paired versions where every single Pokémon has the same Pokédex entry in both games regardless of which region it is native to (not counting Red and Blue, though only Kanto Pokémon existed in those games).
☆ Players who pre-ordered the games from GameStop received a “Preview Guide” which hints at the new features and storyline, as well as explaining the TCG. It also includes parts of the animated trailer in a comic book-style format. (GOD DAMN IT AMERICA I’M SO INCREDIBLY JEALOUS!)
All the points are from the lovely page Bulbapedia!