IGN has some more details about Final Fantasy Crystal Chronicles: The Crystal Bearers for Wii.  They discuss some of the story elements as well as the controls for the game:

Moving on, the director and producer shared a few precious details on the game’s control scheme. The game will make use of both the Wii-mote and nunchuk. However, as Itahana noted, the development team is attempting to keep the controls simple. While not providing too many specifics, Itahana suggested that the control scheme might alter slightly based on the current situation. He also noted that the controls are now being fine tuned to make it easy to perform attacks while moving.

Check out the link for more info.