The Japanese version of Nier: Automata has English voice acting and subtitles
No need to wait for the Australian version.
Nier: Automata won’t be released in Australia until March 10, but the Japanese version, released yesterday, features all the English content.
Initial reports suggested it includes English, French, Italian, German, and Spanish subtitles, but Eurogamer has confirmed it also features full English voice acting. Not only that, the English voices and menu appear to be the default, so you don’t even have to fiddle around with the settings in Japanese to change it.
The Australian and European launches are a little over a fortnight a way. Still, with the release of Switch between now and then, earlier access could be quite useful.