the brand new Macbook Pro has last-generation Intel CPUs. I remember when Jobs announced one of the first Intel Macbook Pros with chips that no other manufacturer had even been given the chance to ship yet.
Admittedly, "Switching a whole product lineup from IBM to Intel" is the sort of multi-billion dollar deal that will give you lots of pull, pre-release goodies, and bulk discounts with a provider.
But it's a one-time trick. We can't expect them to do it all the time.
You won't, and shouldn't, get preferential treatment for "upgpraded an existing laptop to use the newest model of the same CPU".
(Switching to ARM right now could potentially allow for a nice repeat, though)
It's not an interesting point, because if you do your research, there is no gain to using a Kaby Lake (7th generation) CPU over a "Skylake-U" (6th gen) CPU:
Current/2016 13" max-spec i7 MBP uses i7-6567U which scores slightly higher (average single/multi-core geekbench results) than the best dual-core Kaby Lake CPU, being the i7-7500U.
