Not sure I understand the question. The queens will emerge at the appointed hour and if they are caged when this happens then they should be safe providing all other queens are caged, but they need to be mated in no more than about two weeks otherwise they cannot mate.
Mated queens can be put back in cages and kept in a super above a queen excluder. Here they will keep for several weeks, but there can be issues such as the bees chewing the queens' feet, which is why some people who do this "queen banking" suggest the cages need an area where the queens can hide from the workers if required.
Sealed queen cells are sometime sold or given away but the time window for doing this is fairly narrow - only the last few days otherwise the immature queen could be damaged by the handling unless it was done very carefully.
Do a search here for "queen banking" and you will find more information.