It's pretty cool trailer at least
The highly anticipated NieR: Automata will release on PlayStation 4 in North America on March 7, 2017. It will also be available on PC via Steam, but the release date has yet to be announced, or has it? Square Enix released a new trailer titled Arsenal of Elegant Destruction that shows off combat, and originally displayed a March 10, 2017 release date for PC. They have since removed the video and re-uploaded it with only the PS4 release date displayed.
Gematsu has the original video uploaded here. Just why they removed the date is still unknown. The European PS4 release date is March 10, so its possible that they made a mistake regarding these dates. Of course it's possible that it will indeed be released on March 10 and they didn't want us to know yet, but if so why not announce it this close to release?