The villain is Rasputin from VUDO evil organization. The hero is Ray Bramasakti , the name is translated as Ray=Light (well, English anyway supposedly), Brama=name of Hindu God , Brahma, sakti=powerful. Ray to be transformed into Bima, armoured super hero, by using a Red Power Stone by mentor, Mikhail. Ray allies is Rendy and Rena, Ray is an orphan.
Bima weapon revealed to be Helios and his finishing move is Garuda Strike. The character design of Bima is very close resembling of Kamen Rider series.
The casts: Christian Loho as Ray Bramasakti, Stella Cornelia (JKT48) as Rena Iskandar, Rayhan Febrian as Randy Iskandar, Adhitya Alkatiri as Mikhail, Sutan Simatupang as Rasputin.
By now, only a trailer and production team's interview being released. Red White Sentai proudly released the sub title of the trailer. You can found it in the link below.
Official Trailer - Bima Satria GarudaEnglish Subtitle (Hard sub)
DDL for Bima Trailer 2013 ( M e d i a f i r e)
meanwhile I just learn that JEFusion also provide source of English subtitled BIMA trailer, you can check it here at JEFUSION , where you can find alternative translation there.