Nintendo of Japan announced today that they would be remaking the Game Boy Color games Pokémon Gold and Pokémon Silver. The two new titles, Pokémon Heart Gold and Pokémon Soul Silver, will be arriving on the DS in Japan in fall 2009. No other information was given, though Japanese logos were provided for the two games.
No release information was given for North America, though a localization seems very likely. Bear in mind the names are likely to change.
I ended up skipping directly from Red to Pearl, bypassing this generation. Lots of people seem to call the second generation of Pokémon the best, though, so this is probably something I’ll look into.