I went to my Best Buy's Nintendo Experience thing today. I got to see Windwaker, as well as the other 3 games. I can confirm that the soundtrack is changed ever so slightly. At least orchestrated. I'm not sure if other songs are completely changed, but the Helmarock theme is definitely changed slightly. Sounds more like real instruments. It's beautiful! I can't wait to hear more. I hope they do full orchestration for the soundtrack, among other things.