As of Tuesday, April 15, 2008

An advertisement in the newly-released May issue of CoroCoro in Japan has revealed that the next installment of Generation IV - apparently the third game to to Pokémon Diamond and Pearl - will be announced in the magazine's June issue, which will go on sale May 15. The advertisement features a text list of each set of Pokémon RPGs with their respective revised versions (Pokémon Yellow, Crystal and Emerald) written in handwriting as afterthoughts. A hand at the bottom of the page waits to write a new name after Diamond and Pearl with a note that the announcement will be made in the next issue.

Thanks for the news, I wonder when the new game will be released...