This "next thing" from Apple frightens the hell out of me. As someone who cut his teeth on Apple products in 2005 when OSX looked professional, efficient, attractive, and uniquely Apple, I can only imagine things getting unnecessarily re-imagined to where the worst of iTunes 12's UI is combined with the worst of iOS app UI's like Bold headers, frameless white-out presentations, and cornfield-maze-navigation like iOS 11's podcast app.
Will Apple never learn that not everything has to be distilled down to all look alike across platforms or even across apps? Once they've engineered-out any uniqueness or customization towards the platform and everything looks alike (and all physical buttons and ports have been removed), then what will Apple turn its focus on?
This is not good news.
I am mac user from 1992, Powerbook 190 and you aint seen anything. But platform is doing just fine