A second NZ side wont close the gap. It might get a few mill out of SKyNZ but even that isnt guaranteed. Australian TV dont want a second club no-one watches and that is of no interest to their advertisers.
Perth in for ninth game in the 6pm Sunday slot, Then Adelaide and Brisbane3 with 10th game in the Monday night spot. That's the only way I can see NRL ever closing the gap on AFL now.
I would prefer a second side in NZ to a third Brisbane side. Ideally you would relocate one or two Sydney sides and you would have both (but we know that won’t happen)