Like all other Pokemon games before them, Black and White 2 will include Pokemon exclusive to each version. Nintendo has revealed which Pokemon will be available for each.
Players that choose Pokemon Black 2 will get Magby and Buneary, while Pokemon White 2 players get Elekid and Skitty. Various gyms have also received an overhaul in the sequels. For example, Elesa’s has become like a fashion show and she now has Flaaffy in her party.
Nintendo also confirmed that PokeTransfer works between all DS games and you can receive a special mission in Castelia City if you show a person Meloetta.