Attached below are the first teaser trailers for the two upcoming exclusive Final Final Crystal Chronicles titles for Wii.
The first title is "Final Fantasy Crystal Chronicles: Chiisa na Ousama to Yakusoku no Kuni" ("The Young King and the Promised Land".) The first video and set of screenshots from the game are attached below. This is a new title that was announced at the Nintendo Fall Conference 2007. The only currently available video is in low res. A hi-res version should be coming soon. The game will be available exclusively via WiiWare in March 2008.
In case you missed it, the other exclusive Final Fantasy Crystal Chronicle title for Wii, "Final Fantasy Crystal Chronicles: The Crystal Bearers", also has a trailer. The release date is yet to be announced.