clearly, similar to before, the school wait for 26/11 and see how many parents do not come for registration and will then release 2nd batch of confirm letter. I think the school is clever and also fair to parents to let them wait until 26/11 to make the decision.
Don't worry, I remember last year the central allocation results were released Nov 24 and I (plus most of my friends)only received offer letters from SSCPS in mid-Dec, so it is not over yet and good luck to you all