The official Twitter account for the NieR:Automata Ver1.1a anime has announced that the series will return to Japanese television with its fourth episode on February 18, 2023. The series had previously been delayed in January 2023 due to production delays caused by the COVID-19 pandemic.

NieR:Automata Ver 1.1a is described as:

The distant future, 5012.

The sudden aerial invasion of Earth by Aliens and their creations Machine Lifeforms led mankind to the brink of extinction.

The surviving number of humans who took refuge on the moon to organize a counterattack using android soldiers to recapture Earth.

However, the war reaches a stalemate as the Machine Lifeforms continue to multiply infinitely.

In turn, humanity deploys a new unit of android soldiers as an ultimate weapon: YoRHa.

Newly dispatched to Earth 2B joins 9S, the analyst currently stationed there, where amid their mission, they encounter a myriad of mysterious phenomena.

This is the story of these lifeless androids and their endless fight for the sake of mankind.

Source: Crunchyroll