right. in general those names do not change, but there is a good chance that there will be some work around S3 links done, (see this thread). Which you can monitor here. Since those change so rarely, I honestly do not know what will be the process here. I can assure you that if anything changes that has a global effect there will be a proper communication of it. How long do you need for the eventual changes to be applied, i.e.: how much time in advance do you require?
ok, so one important question: after you release the hardware, you can still do all the configuration later, right? (I just want to be sure that by some bizarre mis-configuration you do not release a shipment of bricks)
so are you fine now? and have you tested that it all works (with current names)?
peter
P.S.
I just remembered that I also speak excellent English.