Guess what? Heart will transform into new form of Kamen Rider Drive. This form is called Kamen Rider Drive type Speed Wild Technic. Looks like this form was informed by Gen-san's Drawing of how Kamen Rider Drive looks.
Mitsuru Matsuoka EARNEST DRIVE's eternity is selected as Theme Song for Drive Saga: Kamen Rider Mach / Kamen Rider Heart
Mitsuru Matsuoka EARNEST DRIVE's "eternity (~from SURPRISE-DRIVE)" which was released in their 3rd Single "re-ray" is selected as the Theme Song for Drive Saga: Kamen Rider Mach / Kamen Rider Heart.
This song is the rewritten & rearranged version of Kamen Rider Drive's OP "SURPRISE-DRIVE".
Drive Saga: Kamen Rider Mach / Kamen Rider Heart Highlights → Heart can't transform into Kamen Rider & Chase also appears
Heart cannot actually from into a Kamen Rider initially. He is seen trying to transform but ends up making pose. The Shift Heartron will be attached to the Shift Brace with a Tape.
The New Trailer reveals that Gen-san is going to be the Detective Partner for Heart. Chase also going to appear in the movie to give Gou the Shift Ride Crosser.
Drive Saga: Kamen Rider Mach / Kamen Rider Heart's New Poster was revealed today. On the top right of the Poster you will get to see Proto Zero. Gou had said that he was trying to revive Chase so Proto Zero being his true form would appear.