Been away for a few days so have had some catching up to do. First of all, any country entrant from NSW will need to be one of the Sydney centric country unions. In terms of the one who'll likely be the most competitive then it would be Newcastle/Hunter followed by the Illawarra and then Central Coast. Newcastle would be the only viable one of the three.
Second, it should be no more than 8 teams to start. In time the goal should be to move to 10 in line with the first generation of participants in the JGC hitting maturity. The teams are obvious, 3 in Sydney (North, Sydney and West). Two in Brisbane, Canberra, Melbourne and Perth.
Western Sydney is a must. At it must look to engage the outlier regions as well .i.e. the Macarthur region (note: Campbelltown isn't in Western Sydney) In terms of the Macarthur, the two junior clubs have strong junior numbers but the region has very little playing opportunies outside that. There are a lot of players who play League who would gladly play both and yes, we're talking about kids like Folau.