The best thing they could do is bring back the NeXT interface. In particular, wide screen monitors ought to have the dock at the left or right. It's bananas to have it at the bottom center, and when you have it there both autohide and not having autohide are just irritating in different ways. I use XFCE with a toolbar set up like NeXT on a 4k TV, it's basically the same thing and there's plenty of real estate for lots of icons.
The thin strip across the top of the classic Mac OS was pretty slick as it did everything. On Mac OS 6 and 7 I felt the need to use additional software to enhance the apple menu, or add other menus, but it was still serviceable. And the system menu was always in the corner both in Mac OS and in NeXTStep. The stretchy center dock is goofy.
I doubt they'll do either of the things you described, but in my fairly experienced opinion, Apple's designs have been going in the wrong direction for years — they reduced contrast and simplified what was already too simple, and complicated what was simple. Classic macs were beautifully simple, if tragically fragile in the security department (where they had none.) Their interface perfectly matched the output quality and resolution and everything was clear and crisp, which really set them apart from the other systems. Now Apple interfaces are ghostly and/or irritating. How many shades of grey do I need at once? That used to be impressive on my GRiDPads, now not so much.