* Better Apple TV(+) App
* Refreshed, more constant interface (Music/Podcasts look so different from other apps)
* More consistant icons (some icons are slightly tilted like stocks and mail, while others are straight like Finder and settings)
* Faster iCloud tabs sync.
* Use Apple Pay on Macs without a touchID sensor, like approving a payment with your iPhone.
And I'm gonna steal 2 from
@FoxMcCloud because i completely agree with him:
* Consistency in app "closing" when pressing red X. Some apps minimise, some quit...
* Apple Watch Lock. It unlocks when near, so why not lock when you move away?
The EverythingApplePro guy said in his latest video that MacOS 10.16 might be named "Redwood".