Eurovision 2018

Why are Australia in Eurovision?
https://www.telegraph.co.uk/tv/0/australia-eurovision-could-contest-come-uk-won/

This year, Australia are, naturally, making their return. Jessica Mauboy, who rose to fame after becoming a runner-up in Australian Idol in 2006, will be representing the country and hoping to snag the first place slot. But if she does, what does that mean for 2019's contest?