In Koenig's blog, http://atomicdelights.com, he theorizes that with SS & Edition versions the watch "movement" (watch CPU) can be taken out and replaced, perhaps with a gen 2 version. He also theorizes that in the aluminum version the "movement" is glued on, so you can't replace it. I don't think Apple will announce such an upgrade program now as it would tie their hands. Perhaps if they couldn't or don't thin down gen 2, they would do an upgrade program. Your theory?