It has been announced that a second season of the 86 Eighty Six anime is scheduled to premiere in Japan in October 2021.
The story of the series is described as:
The Republic of San Magnolia has been attacked by its neighbor, the Empire. Outside the 85 districts of the Republic there is the “non-existent 86th district,” where young men and women continue to fight. Sheen directs the actions of young suicide bombers, while Lena is a “curator” who commands a detachment from a remote rear. The story of the tragic struggle between these two begins.
The first season of 86 Eighty Six premiered on Japanese television on April 10, 2021. Crunchyroll simulcast the season as it aired, and the service is also streaming an English dub.