If your DC is going to shadow soon, then I'm guessing the cat will be out of the bag then. That is how it was with our DC anyway. They recently sent our DC to the higher grade for a couple things to at least get her introduced socially to some of the kids she will be with next year. I'm not sure what/if anything the teacher in that grade told the class but the kids seem accepting of her so far. She says some of the kids say hi to her in the hall now, etc.

Our DC will also be the first in the school to do this but in our case it was at the school's suggestion. They had the IAS already and set up a team to complete it, so maybe they are open to it for other kids also, I really don't know.