the development of australian football is very downhill from the last few years, we can see from the last few matches. Of course, we can easily predict if Turkey, Armenia, Kazakhstan, Azerbaijan, especially Russia, join the AFC, it is likely that their team will be more technically superior and easy to qualify for the World Cup qualifiers. (despite UEFA's sanctions for Russia) and this is very unfair to Southeast Asian countries who have to work harder to compete. Yes, we all know that the axis of Asian football power is dominated by Japan and South Korea, although some countries on the Arabian Peninsula are starting to develop in the world of football.
Yeah as of now, Australia is having some troubles but still they have good setup and few players doing good in UEFA clubs which is very helpful for them and they can bounce back strongly in coming years.
But for me if Turkey, Armenia, Kazakhstan Azerbaijan and Russia are considering to join AFC then surely it's positive movement even it's not guaranteed they will agree for this and AFC will surely have some more slots in World cup because with then entry of these countries quality will increase as these all are better in facilities and skills with having better technique which will helpful for many other AFC members.
Japan and Korea both are consistently doing good for AFC for long time and no other team is having result like them even recently China is going down badly and Arabians are also never been consistent in results.