I'd love to see a NZ Cup to join QLD & NSW Cup one day as 2nd tier comps. May be unlikely but really it doesn't need to be anything too special commercially. Players are either paid to play game by game or paid by an NRL club they are signed to, other costs wouldn't need to be too much more than a local comp. Hopefully with a decent standard it could pick up a TV spot and a few decent sponsors.
South Auckland, North Auckland, Hamilton, Wellington, Christchurch, Rotorua, Dunedin, New Plymouth. Or something similar, keep it North Island + Christchurch to save costs if necessary.
Teams partnered with NRL clubs and 2 clubs linked with Tonga & Samoa to provide pathways to those nations.