It has been revealed by Dengeki G's Magazine that the TV anime adaptation of JoJo no Kimyou na Bouken: Diamond wa Kudakenai (Jojo's Bizarre Adventure Part 4: Diamond is Unbreakable) will premiere in Spring 2016. The cast and staff for the series have also been announced.

Staff
Director: Naokatsu Tsuda (JoJo no Kimyou na Bouken: Stardust Crusaders)
Series Director: Toshiyuki Kato (Hunter x Hunter)
Chief Episode Director: Yuuta Takamura
Series Composition: Yasuko Kobayashi (JoJo no Kimyou na Bouken (TV))
Character Design: Terumi Nishii (Mawaru Penguindrum)
Action Animation Director: Kenta Mimuro
Sub Character Design: Shunichi Ishimoto
Prop Design: Yukitoshi Houtani
Art Setting: Kaoru Aoki, Junko Nagasawa
Color Design: Yuko Sato
Art Director: Shunichirou Yoshihara
Director of Photography: Kazuhiro Yamada (Kami nomi zo Shiru Sekai)
Editing: Kiyoshi Hirose (Garo: Guren no Tsuki)
Sound Director: Yoshikazu Iwanami (Fate/Zero)
Music: Yugo Kanno (JoJo no Kimyou na Bouken: Stardust Crusaders 2nd Season)
Studio: David Production

Cast
Jousuke Higashikata: Yuuki Ono (Hataraku Maou-sama!)
Kouichi Hirose: Yuuki Kaji (Shingeki no Kyojin)
Okuyasu Nijimura: Wataru Takagi (Hajime no Ippo)
Rohan Kishibe: Takahiro Sakurai (Toriko)
Joutarou Kuujou: Daisuke Ono (JoJo no Kimyou na Bouken: Stardust Crusaders)

Source: Dengeki G's Magazine via AnimeVoice