Each Trooper will come with both Phase I and Phase II styled helmets-- which I suppose means you could make eight unique figures, assuming you wanted to buy two of each (which I'm sure Sideshow wouldn't mind at all.)
With these new Troopers, you get everything from the new recruit (Shiny) to the seasoned veteran (Veteran) to the elite (501st).
The 212th Attack Battalion Trooper will be a Sideshow Exclusive figure.
Clone Trooper Deluxe 212th Attack Battalion
Clone Trooper Deluxe 501st Legion
Clone Trooper Deluxe "Shiny"
Clone Trooper Deluxe "Veteran"
They will be released in December for a price of 139.99 each.