It was announced on the official website of the Danganronpa 3: The End of Kibougamine Gakuen series that Kibou-hen will be broadcast next week on Thursday, September 29.

According to scenes shown during the broadcast of the 11th and final episode of Zetsubou-hen, Kibou-hen may be related to the real second game. The 12th and final episode of Mirai-hen will be aired on September 26. Thus, Kibou-hen will serve as the finale for the entire Danganronpa 3 anime series.

Danganronpa 3: The End of Kibougamine Gakuen are related to Danganronpa 2: Sayonara Zetsubou Gakuen of the franchise, which aired as two separate arcs each week this season. Zetsubou-hen, which aired on Thursdays, was an original story based on the second game and serves as the prequel to the game; Mirai-hen, which aired on Mondays, is also an original story.

Source: Official site

Danganronpa 3: The End of Kibougamine Gakuen - Kibou-hen on MAL