Okay, so the wolf thing has a lot of potential. If the transformation idea worked in Majora's Mask, why not here as well? Also, they mention the idea that Link becomes a wolf at night, and Zelda becomes a hawk during the day. That could be a sweet storyline.
And that little guy/girl with the mask, the one riding Link. I wouldn't mind seeing him join up with Link in certain dungeons, similar to what happened in Wind Waker.