With 2 days left until the highly anticipated start of the Mystery Map Invitationals start, Blizzard has appointed a commentator, 
Trevor "Manifesto7" Allen.
These audio commentaries will be designed to compliment the replays so that you can listen and watch at the same time.
Manifesto7 can be found posting matches from the Korean leagues on TeamLiquid.net or on his own site Manifesto7.com where he posts many RWAs done on his own time. With that said most likely the audio commentaries coming out will be RWAs. You can download these audio commentaries with the replays on the Mystery Map Invitational page as they become available.Correction: They will not be RWAs, they will be MP3s bundled with the replays.
Blizzard has also re-released the observer versions of the Mystery Maps with Tournament Icons which Blizzard says is "To help foster a fair playing environment in Saturday's Mystery-Map Invitational," but the maps themselves will remain unchanged. These maps are also opened to the public for download in the Map Invitational page.
Links
Mystery Map Invitational Page - Source and more Information
