I'm a bit confused by this, do you mean if Super rugby ended/NZ has a number of teams in the NRL? If Super Rugby ended the money that currently goes towards paying Super players would just go the NPC. The same money that is competing with the NRL without a drift of players to the NRL for better money.
Yeah, I think I kinda meandered a bit there - but the basic point I was trying to make is this:
Having a 2nd tier that's "NZ teams only" is not the solution for NZ Rugby Union.
There's still people out there that live in a fantasy land thinking we should get out of Super Rugby and have our own competition below tests as the 2nd tier - whether that's just the NZ Super Rugby franchises playing each other (maybe with some added?) or NPC as 2nd tier instead of being the 3rd tier it is now - and the only time that NZ teams from that 2nd tier would play teams from another nation would be midweek tour games or some kind of "champion's trophy" at the end of the season against the best (say) Aussie club.
That would be a huge mistake.
The challenge for RU is figuring out a Pacific-wide structure where the 2nd tier is integrated AND competitive.
The RU world is changing from a north/south dynamic to an east (Asia-Pacific) & West (Europe/Africa) split - South Africa is increasingly hitching it's wagon to Europe (as timezones match) - and that's one hell of a competitive bloc.
Meanwhile, looking at the Pacific rim, right now most of the time an NZ team beats whoever they play against. That's a huge problem if that carries on.