Toei Hero Net web limited release. 18cm tall. Pre-order period is between May 1st and June 14th. September release, 5,775 Yen (inclusive of tax).
Also, images of S.I.C. Vol. 54 Kamen Rider Ixa & Dark Kiva, on display at a toy store I believe.
May release, 5,775 Yen (inclusive of tax). More images can be seen in this previous posting.
Images are from Toy World Forum: Link 1, Link 2.