Current international students in Australia are mostly in precarious situations, especially since universities (I'm not sure about schools offering diplomas/cert) have moved all classes online. It's a struggle for everyone to get used to online learning, and having limited access to facilities and services (uni libraries are closed).
Another big impact is that many people (Australians and international students alike) have been asked to stand down or stop working, because of businesses temporarily closing down. Some have really lost their jobs, and are struggling to survive on savings. The Australian Prime Minister has emphasized that international students are expected to show 12 months' worth of funding for their first year as part of their visa conditions. The job outlook for the next few months will be very competitive, even for casual work, so that's something incoming students should consider.
I highly recommend contacting the school until you get ahold of someone (try calling), to get advice for new students. Right now, only Australian citizens and PR are allowed to travel to Australia, but they are subject to 14-day mandatory quarantine to an assigned location. Temporary visa holders are not allowed to enter Australia at this time, and there are no news how long this travel ban will last.
[https://homeaffairs.gov.au/covid-19/Pages/covid-19-english.aspx?lang=english](https://homeaffairs.gov.au/covid-19/Pages/covid-19-english.aspx?lang=english)