I really, really wish they'd ditch the yearly cycle for macOS. It's a mature operating system—older now than classic Mac OS was when OS X launched. It's not missing huge chunks of functionality like iOS, nor is it in lockstep with yearly hardware like the iPhone.

At this point all I do with my Mac is work. I would much rather it be rock solid and reliable than be crammed with new features and change for the sake of change every year. Most of the features that get added for iOS parity/compatibility could probably be delivered in point updates anyway.