From what they said realistically there will be 8-12 newbies, the rest from lower school, just depends on how many decide not to go to 6th form, how many get a place at Elmhurst or the Royal, how many decide to do something different, and how many are not deemed good enough to go into 6th form. So I suspect they give places to perhaps 20 newbies, then of them most will be offered a DaDA audition........and a few will get them. then like you, not sure if we can go for it if we get an award, but crossing that bridge if we get to it....
Good luck with your DC too :-)