Thanks to SydneyY from TFW2005 for reporting TaTakara-Tomy has updated their website for the Transformers Prime line with information on a new Lucky Draw prize toy campaign. The top prize is a gold chrome version of the AM-01 Arms Micron Optimus Prime - other prizes include a gold Arms Micron and a voice base.
This campaign starts at the end of May. It appears to be run in a similar way as the DOTM Lucky Draw campaigns.
Prize A: Gold Optimus Prime (Voyager)
Prize B: "Talking" Figure base (voice of Optimus Prime)
Prize C: Gold ARMS Micron
Prize D: Wallpaper download
The product which will include the code required to enter the competition are Prime AM series, EZ Collection and ARMS Micron gashapon. 2 codes are needed per entry. (Gashapons only have one code for the entire line, which means you can obtain only one code no matter how many gashapons you buy, which seems fair enough considering their low price.)