Fukuda revealed that he was told to write the script for the new installment titled "Gintama Part 2" (tentative name) this summer but he couldn't do it and only finished it recently which he felt satisfied about. On the other hand, Oguri asked for lesser appearance time in the sequel because he really didn't want to dye his hair silver again. He revealed that he had to cut all his hair after the filming and hoped to keep his hair long next year. Oguri also joked that he might not be the lead in the sequel which led Fukuda to join in and suggest that Muro Tsuyoshi can be the new Gin-chan. Nonetheless, Fukuda said that he might be able to reveal more details about the sequel during the Jump Fest on 16 December.
Sources: Eiga.com / Yomiuri Hochi / Natalie