Update: Here are some more details about the game from the trailer shown:

 

New Zelda looks better than my description probably makes it sound. Looks like a fairly traditional Zelda portable game, with puzzle dungeons and Phantom Hourglass-style touch mechanics. The train basically works like the boat in PH, running along the overworld (presumably on a rail defined by players). Enemy control mechanics look pretty nice — link distracted a big Zora with a controlled shadow guard, then snuck around to hit it from behind.

I’m pretty excited for the game!  What do you guys think?

 

Link