According to Bandai Hobby Pro-Shop blog, this special Ball will be molded in metallic color to show the image of an unpainted Ball on the production line. There are a set of the same runners in two different color schemes for the body armor included.
The metallic molded color can also be useful for those who choose to paint it - after a layer of paint is applied onto it, you can peel off some of the paint to show battle damage, and see the metallic color beneath.
The model is based on MG Ball the 08th MS Team Ver. (RB-79K). Weapons include Twin 127mm Cannon and 180mm Cannon. 3 types of decal included.
June release, 600 Yen? O_O
Images are from Hobby Shop Midori and Bandai Hobby Pro-Shop blog.
On the other hand, Bandai announces the release of 6 new Gundam Decals.
No image yet, but the 6 new types are:
* No. 79 for HGUC Zaku II F2
* No. 80 for MG GN-X
* No. 81 for MG Wing Gundam
* No. 82 for MG Musha Gundam Mk. II
* No. 83 for MG FA-78-1 Full Armor Gundam
* No. 84 for RG 1/144 Gundam RX-78-2
All July release, 420 Yen each (inclusive of tax).
Information is from Amiami Rakuten Store.