When will international students be able to return to Australia?

A statement by the Australian Government has announced its commitment to the return of international students to Australia as soon as it is safe to do so.
Australian states and territories are working with education providers to develop small-scale pilot programs to welcome international students back onshore, in accordance with Australian public health advice. The Northern Territory has become the first jurisdiction in Australia to start a pilot program.
If you already have a visa
If you currently hold a student visa but are not currently located in Australia, you’re encouraged to continue studying online while travel restrictions are still in place. Online study done outside Australia due to COVID-19 can count towards the Australian study requirement for a post-study work visa.
If you don’t have a visa yet
The process of granting student visas has recommenced (read more here). If you’re yet to get your student visa, you’re encouraged to apply and commence your studies online, so that when borders re-open you can travel to Australia to continue your studies here. Online study will count towards your studying requirements.
Further reading