What Do You Think of The Legend of Zelda: Spirit Tracks will be like?

Nintendo announced a new Zelda for Nintendo DS. I am excited. It is slated to come out close to the end of the year. First though I have to get Phantom Hourgl cause I have not played it. The game allows you to ride trains. It looks like Phantom Hourgl (in terms of cel-shading and gameplay). Maybe it is a sequel. What do you think?