Rumor has it that nintendo is preparing a new pokemon game to be released in 2012. With the release of Pokemon Black & Pokemon White the rumor is that the next title could very well be called Pokemon Grey.

Last year the PokemonGray.com domain was registered but it was not registered by nintendo.

GoNintendo's speculation is explicit: the latest issue of Japanese Corocoro magazine has an advert for the next animated Pokemon film, running with the captions "what mystery is hidden in Kyurem?" and "Kyurem's unseen power will be revealed!"
Kyurem (who is grey) is the last member of the Tao trio, alongside Pokemon Black and White cover stars Zekrom and Reshiram.