Both the X-Plus Gigantic Godzilla 1989 and DefoReal Hedorah standard version figures have been officially revealed, although not directly from X-Plus, from Hobby Search. Godzilla stands 52cm tall and retails (before discount) for 54,000 yen (approx $486 US). This figure can be pre-ordered now with release scheduled for Mar 2019. Hedorah stands 14cm tall and retails (before discount) for 6,480 yen (approx $58 US). It can be pre-ordered now with release scheduled for April 2019. These are both standards it is unclear what the Ric versions may be, we will updated to post with that info once available.
Update: The Ric version of Godzilla features a second closed mouth, and glow in the dark fins (pics added below). The Ric Hedorah adds a damaged eye option (pics below).