Nope. I talked with a CM about the subject at length, though. (This was last week.) She said they really haven't been told very much about it. I told her what I'd read online, and that the CMs will be awarding some of the things. She wasn't aware of that!
She said they have a sort of "Dream Team" made up of CMs from around the park, and that team will do all the awarding. The week we were there she said the team was already out and about in the park for practice, not yet awarding anything. She said the staff of the Dream Team is supposed to change every few months to give others a chance to participate, but she seemed to think it would be only the more experienced CMs chosen.
I told her about some of the prizes I'd read about here on the DIS and seen in the 'commercial' on the Disney site, and she said they hadn't been told much about the prizes, either, that the CMs keep asking for more info (because they're being asked by guests) and management was being pretty tight-lipped at that point.
I think it will be a lot of fun, and I hope one of you with a future trip wins something and can tell us about it!