It looks like the upcoming live-action Gintama film may have a bit of a dark edge to it, because a sextet of new cast members have been announced, and each one plays a character from the "Benizakura Arc".
The new cast members include (from left to right and top to bottom):
Additionally, singer / actor / TV talent Tsuyoshi Domoto (pictured below) has been cast as Shinsuke Takasugi, the villainous leader of the Kiheitai rebel army.
The live-action Gintama film is directed by Yuichi Fukuda and stars Shun Oguri as Gintoki Sakata. Principal photogrpahy has already concluded, and the film is aiming for a 2017 release date in Japanese theaters.
Source: Comic Natalie
Paul Chapman is the host of The Greatest Movie EVER! Podcast and GME! Anime Fun Time.