Bandai is releasing the King Ghidorah 1964 Three Color Figure Set, it features Ghidorah in his traditional gold, original color version, and poster/lobby card version. It is not completely clear if there are three figures (or two) or if the gold version can have its head and necks, and wings replaced to create the poster version. It stands 24cm tall and is 34cm wide (wingspan), and it will retail for 14,300 yen. It can be pre-ordered now from Bandai and possible other retailers, with release scheduled for Dec 2019. We will update on the details once we have more info.
Update: this is a two figure set with extra head/necks for poster version.