Ok, have re-read all of the posts from the games so far, and i am going to take a stab at an Aus 23, factoring in players who are likely's as well as those who appear to be performing well:
Nice go Hans, and we've got to start somewhere with reading the tea leaves, but even for those attending the games I think it's going to be a crystal ball gazing exercise.
The Australian U20s coaches will already have their squad down on paper for the Oceania Tournament in Brisbane, and how they go there will determine the final squad for the World Junior Rugby Cup in Italy. These games in Canberra are only a bit of icing on the cake and unlikely to upset their predetermined list. There will, of course, be a few players they aren't 100% sure about, and they'll be watching the boys in those positions pretty carefully, but I think it will just be a 'tidying up' exercise for the most.
My guess is that the selectors will be hard pressed not to select a good number of the NSW backs, given their form in the competition, and in all the previous hit-outs and trial matches since Christmas and the players' form before that in various Colts competitions and the World Cup squad last year.
I think this will mean they spread the selection of forwards for the squad to include more Baa Bass and Qld squad members than you might expect, given the dominance of the NSW forwards during the tournament. This will mean they end up with the politically correct spread of boys from the three squads.
The Baa Baas forwards are stronger than Qld's forwards, so expect to see them get a good representation. Then perhaps even numbers from Qld and NSW for the remainder of the forwards. Although the NSW forwards are doing a fantastic job in Canberra, I think they anyone who is not in the starting team has no chance, and a few of those in the starting lineup will be disappointed.
Where there is a toss-up between two boys of equal skill and ability, the deciding factor will come down to balancing out the selections so it's not all "Blue, Blue, Blue for NSW" in the national squad.
If there are two boys in the same position in the starting and reserve sides for NSW, the reserve will likely not be selected over a Qld or Baa Baa starting player in that same position, even if the NSW reserve player is actually a better pick. ie, a reserve prop in NSW will be overlooked for a slightly 'weaker' prop in the BB or Qld squad - it just wouldn't be a good look to select 1 and 2 in a position from NSW and none from BB or Qld.
So, looking at your stab at the squad, I think there will be more Baa Baas overall, and probably a couple more in the starting team than you have suggested. NSW is showing themselves to be far superior to the other two sides, right across the park, and the Qld and Baa Baa sides are pretty evenly matched.
So I think you have selected too many Queenslanders overall. Having said that, the selectors may well have an unconscious Qld bias and be unable to help themselves putting more Queenslanders into the mix than Baa Bass to make up the required spread, given so many NSW boys have put their hands up for certain selection.
The above is my contention. Keen for thoughts from others...