Posting back, I was very pleased to find out that today dd4 was taken over to the k classroom to look around and be observed. I heard this only from the preschool teacher when I picked her up; she said the K teacher thought she did really well!
Then she said the k teacher would probably come into the preschool room as well and see how dd is doing there, not exactly sure what is up with that, but it sounds like the whole k thing might be a possibility after all, so I am very hopeful (although obviously not a done-deal!) yikes!
I am still on pins and needles waiting to hear back from the math/science magnet school for my ds10; he was accepted for the program but they are very short on room, so if just a couple kids are not returning to the school, he still has a shot. Keeping all my fingers crossed.