A private organization called "GDW Project" announced that they are producing an anime which is related to the J9 anime trilogy, which aired in the early 80's.

As the representative of GDW Project, Yu Yamamoto posted a message to the Facebook page, stating that the new series will have a "J9 taste" but include entirely new characters and story. The previous series each adopted a different motif: the Hissatsu Series for Braiger, the Shinsengumi for Baxingar, and Around the World in 80 Days for Sasuraiger. Similarly, Ginga Jinpuu Jinraiger will use the Chinese classic novel Water Margin as its motif.

(Source: Anime News Network)