This is the sticking point with SR, SA want to move north as that is where the money is for them in TV revenues, but NZ want to play them to expose their top players to the level of rugby that will improve them, (far more than Aussies will).Yeah i don't think the future of the professional game has Australia and New Zealand playing South African clubs regularly. If anything it makes more sense for SA to play European teams and for Aus/NZ to focus on cultivating the game in the pacific and Asia.
The Kiwis are loathe to let go of the South Africans though.
ONe option would be to follow Forrest's idea and get the Aussie and NZ franchises to become private within a single entity operation like the NFL. Then the Pacific players, (already capped) could be drafted to play in here teams and improve the standard further. A Pacific Championships with 10-12 teams could then run.
This idea that the PI could host a team in SR will not happen as they do not have enough money, although I do like the idea of having a team based in Hawaii, using the best US players and best PI players.