Would have to agree that the most likely scenario will be something along these lines. Not sure about SA getting games, its a long trip to make mid season. Maybe 2 teams with a bye the next week could do it. The only conceivable base for an international team is NZ, and even if the game gets good consistent growth there, they are miles off.I doubt by 2030 we will have a team based outside of Australia...but I can see increased numbers of players in the AFL from South Africa, New Zealand, Fiji and the USA.
IMO:
Expect a team to have a 3-4 game/year contract with New Zealand, an increase on the Saints deal, as well as a small New Zealand league that is actually somewhat quality.
A team will have sold 1-2 games a year to South Africa as well imo.
North or the Dogs to have expanded heavily into regional Victoria, and I genuinely believe Hawthorn can have a long term deal with Tassie.
Have a 3rd WA club, and a club possibly based out of Tasmania (that can be the New Zealand one), and we have a comp that is national, as well as broadening its bases overseas (New Zealand & South Africa get H&A games, China, USA, Canada and UK get off-season matches, players recruited from Ireland, Tonga, Fiji and Papua New Guinea relatively regularly as well as the other countries)
So we will not have an international competition, but the sport will be international if that makes sense. If we only increase the no. of teams by 2, but increase the talent pool majorly, we should see some excellent football.
I think the point you make about the talent pool is key. The game cannot grow on a static talent pool. If you look at the big soccer clubs, their playing talent is the equivalent of a whole list of AA standard players. The gap between the best players in the AFL and the worst is to big as clubs scrape the bottom of the barrell hoping for an overlooked gem.
Even a handful of athletically gifted foreigners blooded as youngsters in small overseas leagues would be a godsend.