The UK already has a points-based system for all non-EU nationals so it makes sense that after Brexit we would have a points-based system for all nationalities (which is good, it seems fair, practical and flexible enough to me). I was reading this: http://www.bbc.co.uk/news/uk-politics-29594642 On the surface and based on little research except this article (because I really can't be bothered tbh) the only difference is that Australia's system is more rigid (2 categories: workers and humanitarian efforts such as helping refugees) whereas the UK's acknowledges other types of immigration - students, for example - so in a way maybe ours is actually better