Straight out of Japan, it's another Wii Resident Evil game! Revealed in Famitsu Magazine, Resident Evil: The Darkside Chronicles will take place during the events of Resident Evil 2.
At this time, there is no word on a release date or any confirmation that the game will be released outside of Japan. Since Umbrella Chronicles sold well worldwide, it is likely, however, that the game will see a US release.
Expect an official announcement from Capcom shortly.