Pokémon Black 2 and White 2/Fridge

Fridge Brilliance

 * Why the mixed Pokédex? After you beat the Elite Four in Pokémon Black and White, you gain the ability to catch Pokémon from the other regions of previous generations. Since these games take place two years after Black and White, it makes sense that you would still have the access to them.
 * Several of the older Pokémon already confirmed to be present in Black 2/White 2 -- such as Eevee, Beldum, and Riolu -- were previously only obtainable as gift Pokémon or in the Safari Zone and not available in the wild. Perhaps they are actually native to Unova and imported to other regions?
 * Also, in the previous game, a Trainer mentions that they are looking for Pokémon that escaped the PokéTransfer Lab. This must mean that the Pokémon escaped, fled throughout the region, and bred. In other words, invasive species are taking over Unova.
 * Bianca's slight redesign includes glasses. This seems like a somewhat inexplicable addition until you take into account how klutzy she is in the prequel - she's nearsighted!
 * A slight bit, in the animated video. Bianca shows the protagonist and rival the three Poké Balls that contain the starters. It may just be because it was in the middle, but the camera focuses middle Poké Ball, and zooms out to see that the protagonist had his eye on it. Two scenes later, he is revealed to have an Emboar, meaning he chose Tepig. Tepig is in between Snivy and Oshawott in the Poké Dex, and thus would have been the Pokémon in the middle Poké Ball.

Fridge Horror

 * Possibly; in the promotional video, assuming that what was shown were actual places in the game,
 * (Continued from the fridge page of these games' predecessors.) It is pointed out in the Fridge page for the original Pokémon Black and White under Fridge Brilliance that in the those games, Absol can be found around the Giant Chasm, as if it's warning the protagonist to Kyurem's presence. In these games, Absol is implied to have a wider range due to its addition to the Unova Pokédex... and Kyurem is the mascot of both games, in which parts of Unova were frozen over. Looks like Absol felt it had work to do in other parts of Unova -- and of course it gets ignored and often scapegoated.