Hate to break it to you: they're already outdated.
What the hell, I am running on a early 2011 MBP and still happy after the SSD upgrade. All the GHZ, GB etc will become less and less important as only few people actual need them. Current hardware perfectly meets current demand. Good thing about this will be that prices will have top drop eventually (even Apple's prices).
PS: don't get me started about the touch-bar......