I don't actually know much about the Iphone 8 yet, but I do know IFixit will be one of the first people in line to get an Iphone 8 just like everyone else and will tear it down almost as soon as they get it. They don't get any products specifically sent to them to be torn down to avoid a rigged device that appears easier to fix than it actually is for an higher repairability score. Someone else on the team might have more information on it than I do as well.