Legend of Zelda Wii ('twilight princess') follow up?

They are making two zelda games, legend of Zelda: Spirit tracks and an unannounced zelda game for wii. There is no info about the zelda game on wii yet. Keep up with E3 this june there might be some new information about it. I don't know if it will be a follow up to TP, but nintendo is making one more zelda game on the wii.