(1) Gundam Head Display Series 4 - Second Week of January 2009 release. Price from Akism Yahoo! Store is 3,980 Yen (inclusive of tax) per set.
As shown in the image, this series include Strike, Ground Type Gundam, F91, and Devil Gundam. You can find images of the previous three series in this previous posting.
(2) Kiba Gundam Gaiden Real Type Figure Knight Gundam with horse - Two types of Knight Gundams (actually the difference is just the weapon assigned for each: one is equipped with a shield and sword, while the other is a lance) and the horse. You'll have to (at least) purchase two sets to gather all the weapons.
Fourth Week of January 2009 release. Price from Akism Yahoo! Store is 3,480 Yen (inclusive of tax) per set.
GA Graphic also has a gallery up for this prize item.
Images from GA Graphic.
(3) God Gundam Hyper Mode & Gundam RX-78-2 - Fourth Week of February 2009 release. Price from Akism Yahoo! Store is 2,280 Yen (inclusive of tax) per set.
(4) God & Master Gundam - Fourth Week of March 2009 release. Price from Akism Yahoo! Store is 2,280 Yen (inclusive of tax) per set.
All promo images are from Akism Yahoo! Store.