He's close to how I'd like to see it with a few exceptions. I wouldn't go with a team in each Argentina or Japan. Not yet at least. What I would rather see is each conference go to 6 teams. That could be achieved in a number of ways. The Kings will naturally assume the 6th SA position. In the Australian conference you could either look at adding a 6th team in Western Sydney local heavy roster or PI and an PI team in the NZ conference based out of Auckland.
In terms of talent. Well, that's where you engage both Argentina and Japan. In each and every squad with the exception of the PI team, open three places for Argentine players and two for Japanese. That would provide a total of 51 places for Argentine players and 34 places for Japanese players. Beyond that another two places could be opened for further PI inclusion. Finally one more for a Tier Two player.
In all you could bring in over 150 (including the PI squad) new players without placing any pressure on the existing player pools in either country. It would also provide more benefit via involving more players in a higher level of competition that just one team each.
So, three conferences of 6 teams. Each team plays their conference rivals twice and three rivals from both of the opposing conferences. Totaling a 16 round 144 game regular season. Ditch byes.
Top two teams from each conference progress to the finals. They are then seeded according to a cumulative table. The top two seeds have the week off. 3 plays 6, 4 plays 5. Winner of each plays the one of the top two seeds (winner of 3 v 6 plays 1 and winner of 4 v 5 plays two). Highest ranked winner either hosts the final or you play a two leg final series. Either way its's no more than 20 weeks. The longest tour would be three weeks.
Finally, planning for a forth conference should be set in place. Not in Asia or Argentina but North America. There is even a structure that with the right planning and development that could very easily be developed into a new NA conference. The Pacific Rugby Premiership. Its arguably the premier club comp in the US. Semi-professional already. Easily covers the hot spots of the game in the States.
The goal would be to engage the clubs to develop a city based league. Denver (Glendale and Barbarians), San Francisco (SFGG and Olympic Club), Seattle Saracens, San Diego/Southern California (OMBAC, Santa Monica and Long Beach). On top of that you can include the CRC teams in the BC Bears and Ontario Blues.
Part of this arrangement would be the provision of coaching and technical advice, development via playing standard, business and brand. This would involve the Super Rugby branding.The plan would be to draw investment while progressively elevating the playing standard and interest with intent to include the conference in time for the next rights negotiations.
If proven successful. Some methodolgy could be employed in establishing new conferences in the future.