The official website for the NieR:Automata Ver 1.1a anime has announced that the series is scheduled to premiere in Japan on January 8, 2023. Crunchyroll had previously announced that it will begin simulcasting the series in January 2023 in North America, Central America, South America, Europe, Africa, Oceania, the Middle East and CIS.

The story of the game that the anime is based off of is described as:

NieR:Automata tells the story of androids 2B, 9S and A2 and their battle to reclaim the machine-driven dystopia overrun by powerful machines.

Humanity has been driven from the Earth by mechanical beings from another world. In a final effort to take back the planet, the human resistance sends a force of android soldiers to destroy the invaders. Now, a war between machines and androids rages on… A war that could soon unveil a long-forgotten truth of the world.

Source: ANN