From Bandai, Plex Co., Ltd. & X Plus Co., Ltd.! Originally produced in Japan by X-Plus in 2012 (where it quickly sold-out), this version of the King Kaiju comes from the hit 1989 film, Godzilla vs. Biollante. Standing 12" tall, with an overall length of 18 1/2" from nose to tail, this version of Godzilla is masterfully sculpted and hand-painted, with no detail overlooked!
In stores 12/31/14
Retail $160

From Bandai, Plex Co., Ltd. & X Plus Co., Ltd.! A gigantic dinosaur resembling a Tyrannosaurus Rex, Gorosaurus was first seen in the 1967 feature film, King Kong Escapes (as well as 1968's kaiju epic, Destroy All Monsters) where the bipedal monster battled the mighty Kong on their Mondo Island home. Standing 10" tall, and with an overall length of over 15" to the tip of his tail, this beautifully sculpted, hand-painted vinyl figure captures every detail of this supporting kaiju in all his glory.
In stores 12/31/14
Retail $160

From Marmit. This reproduction of Marmit's Vinyl Paradise Godzilla: Millennium figure from 2007, is molded in a dark green vinyl, with black, red and gold spray detailing. The height is approximately 9" from his feet to his highest spine that rises over his head. 
In stores 4/29/15
Retail $65

Also listed is the S.H. MonsterArts Mecha King Ghidorah (5/15, $200), two more Sofubi figures, Godzilla Bullmark J-Tail (2/15, $75) and Godzilla '89 (4/15, $65), and Godzilla Bearbricks in two different sizes 1000% (27.5" approx $500+) and 400% (11" approx $100+) both due in March 2015.

This figure, a re-colored version of the previous figure, hits in April 2015, is Tamashii Web Exclusive, and should be about $75 US.

Here are some new pics of Mecha King Ghidorah with the Dorats giving a good size comparison.

SH Monsterarts Mecha King Ghidorah  will be a limited web shop item. The mechanized version of Monster Zero looks pretty fantastic and comes with a load of features and accessories, which work well with their previously released Godzilla SH Monsterarts figure. The 250mm tall (almost 10″) figure will sell for 19,440 Yen (about $187 USD). It also includes three Dorats, from the 1991 movie Godzilla vs. King Ghidorah. The Dorats were mutated by a nuclear blast that caused them to fuse together and become King Ghidorah.
Update: Bandai has put up an official page for the next massive MonsterArts release. Also they updated the price being $199 US (about $10 higher than previously posted) and the release is set for March 2015.

Here is the first pics of the S.H. MonsterArts Mecha King Ghidorah a couple of other details/rumors are price will be around $180 to $200 US, and that the torso may actually be metal (very interesting). We will continue to post details and pics as we get them.

The magazine scan reveals the fourth coming S.H. MonsterArts Mecha King Ghidorah, the figure should be out beginning 2015 according to the text no other details yet but we will post them as soon as we get them.

Based on Kiryu/Mecha G’s appearance in the film Godzilla: Tokyo SOS. S.H. Monsterarts Kiryu/Mecha Godzilla High Mobility type will be released as a Tamashii Web Exclusive in October for the price of 12, 960 yen (approx $130 us).