After rumors of having a writer coming from the Tales of franchise, it is confirmed that renowned Super Sentai head writer, Naruhisa Arakawa will write for Goukaiger!
To those who don't know him, he is the head writer of Kamen Rider Kuuga, which is consider by most as the best Kamen Rider series in the Heisei Era (when will we see him write again for Kamen Rider?), Bakuryuu Sentai Abaranger, which he introduced the concept of AbareKiler and as well as Tokusou Sentai Dekaranger in which he named the six main Rangers after tea! Now I understand why fans think that he is responsible in naming Captain Marvelous as Captain Marvelous!
Special thanks to Valsag Fantasy for the info!