My uneducated guess- not much other than ideas on paper. I suspect maybe new chip versions are in progress and maybe have engineering samples of said chips, an

My uneducated guess- not much other than ideas on paper. I suspect maybe new chip versions are in progress and maybe have engineering samples of said chips, and probably a rough idea of the new design. I think the software probably isn't more than a few months ahead of what will be released. as you get closer ~ 180 days from release you probably start seeing a more complete device ready. Totally a random guess though. I know movies hint that there are devices 2 and 3 generations ahead floating around in companies...