Updated: It looks like ​Kaiyodo is re-releasing a series of Godzilla kits, the first three are Godzilla '54, '62, and '64. It seems they may be Yuji Sakai sculpts. They will retail for 6,800 yen (approx $62 US) and are to be released 6/25. These are 20cm kits that were released a couple of years back, possible being re-released because of Shin Godzilla.  Thanks to Stan Hyde and Mike Field for assisting with the translation.