I think there is benefit in the notion of immigrants being required to live in provincial areas of Australia for, say, 5 years, as a condition of their journey to citizenship. What has to come with it is major infrastructure programs to develop the provinces at the same time. This would work. Take, for example, Tasmania, a big island with hardly anyone on it, and those who are there are giants, have two heads, and with a skill set that can only cut down trees...this would be a grand place to re-develop and make actually sustainable with migration and big money for infrastructure. This would work. A multi-cultural Tasmania. Give it ten years with a big focus on social and structural development, and they'd have a higher living standard and more diversity than anyone or anywhere else in the country. They may even choose to secede...and that, all in all, would be a good thing for Tasmanians.