Pre-order will begin tomorrow (May 14th). Late September release, 315,000 Yen (exclusive of tax). The price is actually 35,000 Yen less than the "regular" version.
Also, according to Bandai, this will be the last production of HY2M 1/12 Gundam RX-78-2. Fans will have to wait till the company decides to reissue this model in the future to see him again.
Images and information are from Bandai Premium and +D Lifestyle.