A new trailer for Spirit Tracks was revealed through IGN, which coincidentally is where the 17 leaked pictures I was too lazy to post came from. It looks epic and seems to confirm many suspicions about the plot. The trailer can be found here: http://www.youtube.com/watch?v=8ZpVYFxHDJ0
Speaking of the plot, IGN also revealed some details about that as well. I won’t go into it for those who don’t want any spoilers, but for those who just want information on the game, it is not that much more detailed than a spoiler free walkthrough. However, it does have some minor key spoilers, so read at your own discretion. Plot summary can be found here: http://ds.ign.com/articles/104/1042825p1.html
One thing I can say, though, is that Spirit Tracks fixes things people complained about in Phantom Hourglass. One issue was when the game forced you to go through the higher levels of The Temple of the Ocean King to get to the new areas. But in Spirit Tracks, the Tower has an entrance staircase that allows you to ascend and bypass the previously completed portions, so frustrating revisiting of older parts of the dungeon. What else was fixed? You don’t have to draw circles to get Link to somersault. Now you just double-tap the edges of the screen.