During the London press demonstration of Black and White on Feb. 10, the Spanish game guide site obtained an interview with Ibe, who designed some of the Pokémon introduced in Pokémon Black and White Versions. When queried about the eventuality of a "third version" sequel to Black and White on 3DS, Ibe replied (note: this was translated from Japanese to Spanish to English, so a number of mistranslations may have occurred):
“No, not at all. We've finished this installment with Black and White Versions.”
-- Mana Ibe (translated)
Many fans have taken this statement to mean that a third title in the fifth generation, the fan-given moniker of which is often "Gray/Grey" (derived from the mixing of Black and White), will not exist at all. Whether this is a translation mistake is unknown. Each previous generation has concluded with a third version that has a slightly different plot (and new gameplay elements) from the original paired versions. Pokémon Yellow, Pokémon Crystal, Pokémon Emerald and Pokémon Platinum are such games. If "Gray/Grey" does not eventuate, then this generation will be the only one without an enhanced follow-up game.
However, there are some lingering doubts over Ibe's statement. Gamers who have investigated the coding used in Black and White have reported that there are hidden data not used in the game. These include two moves—Freeze Bolt and Cold Flare, both of which are speculated to be learned by Kyurem in the future, an Ice-type legendary Pokémon similar to the Black and White mascots Zekrom and Reshiram—and an obscure key item called a God Stone. Could these be special mechanics for a third version plotline and mascot? Perhaps. But they could also be beta objects, or involved in an upcoming Wi-Fi event. If Ibe is to be believed, then this might have to be the case.
In addition, a marketing undertone could be used here. If Ibe said that there would be a third version for sure, then many fans would wait to purchase Black and White, as the third version generally encompasses parts from the original pair.