If they developed a competent eGPU implementation (currently entirely unsupported in Silicon Macs as far as I know), then that and another tier or two of CPU options fitted into the Studio line sounds more like Apple's style. The trashcan, for all its misgivings, was still pleasantly small and a small, quiet workstation bolstered by exclusively external expansion strikes me as ever-so-Apple.

And of course we keep the Mac Pro above that, meant for almost nobody.

You're right, they don't appear to be chasing these markets aggressively right now, but some of the stuff they're doing suggests that might change.