How can you take any competition seriously with under 10 teams (and likely 7-8??).
I've said this a thousand times, the only way forward for a sustainable comp is to replicate the AFL & NRL in local content per week and length of competition.
And therein lies the essential tactical and strategic problem/challenge:
(a) When Aust rugby has tried to 'manufacture' new and essentially synthetic pro teams outside the oldest core of the top pro QRU, NSWRU, ACTRU teams, our financial and playing success with such teams has been poor to say the least, very much including the NRC teams. And our RA etc corporate resourcing position to speculatively cash fund and support new teams is, politely, 'extremely limited'
(b) Even if and when we try to quickly fabricate more teams, do we have the playing and coaching capability to ensure they are of 'good enough' rugby quality so not to ensure as a consequence a failed and unbalanced new pro comp wth terrible crowd and viewership numbers? There is no point putting newly fabricated pro teams into a comp and they play crap rugby for years, such a strategy will only increase the aggregated probability of a total comp failure. (My own long-standing view is that the sole new Aust pro rugby team that conceptually possesses any chance of working is 'Western Sydney' and then even that needs excellent coaching etc and sustainable development investment to make work.)
(c) IMO we keep forgetting in these threads something very significant: that it is well-known that Foxtel eyeballs nos and to an extent Super game crowds have been heavily propped up by the large, rugby-passionate Kiwi expat population in Aust - an all Aust pro comp will surely lose large %s of that demo and I doubt it can afford to, especially from where we sit today
(d) given (a) - (c), it's axiomatic that if any new 'domestic' pro comp can be made to be viable it needs, at a minimum, 4 Aust core teams, 4-5 NZ teams, and, say a Fiji and/or 'PI Nations' combined team (a la the West Indies in cricket which I don't think is inconceivable for Sth Hem pro rugby under Test level). Given the large Fiji and PI expat population here we can be sure that those non-Aust teams would be well followed here and in their home bases.
THE crucial economic variable is that there is a critical mass of games in Aust at the right screen times involving an Aust pro team, it is not IMO absolutely essential that the core of a viable pro comp is solely Aust teams. That's a great goal but I believe it's a financially and rugby-playing-quality non-viable dream as to where we are as a code in 2020
(e): (d) yields a viable media rights platform across all of Aust, NZ and PIs, I have major doubts that an only-Aust rugby pro teams product that plays only itself, will do so (maybe 10-15 years ago but not now), there will not be enough domestically-based eyeballs, and there will not be enough deliverable playing quality, to go around.