I don't think Macs will be gone, or even castrated. Apple is seriously working on the new APFS (Apple File System). So it seems they are still planning a future for Macs. But perhaps only for the laptops and iMac.
Throttled chips to work safely within the thin and anorexic chassis? That's not castrated? 2/3 of the desktop offerings haven't received any upgrade/update for years (iMac 498 days, Mac mini 860, and Mac Pro 1161... it may be easier to start measuring in years, 1.4, 2.4, and 3.2 years respectively). Forgive me for observing that the Mac is not even a secondary focus for Apple at the moment. Seeing how this is a Mac Pro thread, many of us are in need of horsepower that an iMac and notebook (even with a magic touch sensitive display strip) won't satisfy, leading many of us to look at various exit strategies-some have left (mostly to HPZ, and hackintosh), some are waiting for WWDC, look through the thread all 157 pages worth for the reasoning and logic that has lead to these conclusions before you spout off that there is a future in Macs... APFS is also used in iOS you can't conclude that there is a definitive future just because Cupertino threw resources to work on one file system for their products.