When Vista is RTM'd it should. They have stated there there will be a new sound scheme. But so far i have only heard mostly the XP Sounds with a few variations. I know that Build 5552 which was a Internal Leak did have a different sound scheme. But most of those were incorperated into Build 5744.
So as of right now i cant say for sure. Since we have heard rumors but have not heard anything since.