[Sunred]

Kamen Rider 4 is the first pilot-themed rider that will appear in a three-episode special exclusive to the dvideo service in Japan starting March 28th.
Kamen Rider 4 will be created by Shocker while Drive, Faiz, and Zeronos fight to correct history. He will also be piloting an airplane called Sky Cyclone.


source: http://www.cinematoday.jp/page/N0070690

＜Update＞

Kamen Rider 4 will be voiced by rock band SOPHIA's vocal Matsuoka Mitsuru who we know and love as Daido Katsumi/Kamen Rider Eternal and currently vocal of EARNEST DRIVE, the project band behind the OP of Kamen Rider Drive.

source: http://www.cinematoday.jp/page/N0071074