first driver are confirmed:
TOM’s: Kazuki Nakajima – André Lotterer
Cerumo: Hiroaki Ishiura – Yuji Kunimoto
Impul: Joao Paulo de Oliveira – Andrea Caldarelli (?)
Le Mans: Kamui Kobayashi – Narain Karthikeyan
Mugen: Naoki Yamamoto (?) – Richie Stanaway (?)
Dandelion: Tomoki Nojiri (?) – Stoffel Vandoorne (?)
Nakajima: Daisuke Nakajima (?) – Bertrand Baguette (?)
Kondo: James Rossiter (?) – Nick Cassidy (?)
Real: Takuya Izawa (?) – Koudai Tsukakoshi (?)
Drago: Takashi Kogure (?)
KCMG: Yuichi Nakayama