I gave it a laugh emoji, but AR contact lenses could become a thing some day...?
I think, with the "sealed" aspect of Apple silicon (everything either in the SoC or on the SoC package) AIOs like the iMac may go out of favor; no one likes setting aside a perfectly good display when the actual computer parts need upgrading (via total replacement)...
So this Mac Studio makes sense, mid-range to high-end (assuming M1 Pro to dual M1 Max SoCs) to cover a wide spread of compute power needs; where in the past you had the Mac mini (reasonably priced, but low power) on one end of the spectrum and the Mac Pro (very high-priced, with compute power to match) on the other...