A new main visual has been released for the Legend of the Galactic Heroes: Die Neue These — Sakubou science fiction anime series. The fourth season of the long-running franchise will be released as three theatrical films slated for release in Japanese theaters in Fall 2022.  

Part one is scheduled to premiere on September 30, part two on October 28, and part three on November 25. 

Much like the first three seasons, the main production staff for the fourth season consists of Shunsuke Tada as director, Yuujirou Moriyama as assistant director, Noboru Takagi as series composer, and Youko Kikuchi, Kei Tsushima, and Iwao Teraoka as character designers. Production I.G is in charge of the animation production.

Legend of the Galactic Heroes first began as a novel series by Yoshiki Tanaka, running from November 30, 1982 to November 15, 1987. 10 physical volumes have been published in total. The novels were also adapted into a 1988 anime television series, OVA series, and films. The first two seasons aired in 2018 and 2019 respectively.

Crunchyroll streamed the first three seasons of Legend of the Galactic Heroes: Die Neue These  in North America and describes the first season as:

Thousands of years into the future, humanity has advanced into space. Here it has divided into two countries and two different forms of government: the autocracy of the Galactic Empire, and the democracy of the Free Planets Alliance. The countries have been at war for 150 years. Near the end of the 8th age of the space calendar, the appearance of two geniuses will change history forever. The unstoppable genius, Reinhard von Lohengramm, and the unbeatable magician, Yang Wen-li. As heads of the Imperial and Alliance armies respectively, the two will face each other in battle over and over again.

Source: Legend of the Galactic Heroes Official Twitter