An adaptation of Nier: Automata will be streaming on Crunchyroll in early 2019. The show will begin streaming on January 7th, according to Tyler Schirado.
Taro said in a recent video that there will be some changes to the game, but based on the official synopsis, it seems like the story sticks close to the game. There are 26 different endings and a narrative that takes place across a few different perspectives, so we will have to wait and see if the show includes those.
Here's the synopsis if you're interested. The punctuation was left the same as it was given.
The distant future, 5012. The sudden aerial invasion of Earth by and their creations
led mankind to the brink of extinction. The surviving number of humans who took refuge on the moon to organize a counterattack using soldiers to recapture Earth. However, the war reaches a stalemate as the 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 and their endless fight for the sake of mankind.
There is an official trailer for Ver 1.1a Wednesday, but it doesn't have any footage of the show itself. There are a few snippets of the series in motion in this video, as well as an interview I did with Taro. I highly recommend it if you haven't played it before, it's available on Nintendo Switch
Nier: Automata Ver 1.1a is one of many new shows that will be on Crunchyroll this winter.