Here's an image taken from Hobby Japan Magazine of upcoming Soul of Chogokin SOC Aussentseiter showing its "Pferd" mode or horse mode that can be ridden by the Daizengar.

The SOC Aussenseiter (along with Daizengar) will be released on June and it will be priced at 29,400 Yen inclusive of tax.

Thanks to Ngee Khiong for the heads-up.