I don't know about segmenting, but you may see starker differences between high- and low-end systems in a lineup.I get the feeling Apple is going to start segmenting their product lines even further, perhaps adding a Mac Mini Pro or something that will be full-featured out of the box.
Guessing that if they did this, it would be due to a cost-savings measure, perhaps as an indirect result of the SoC being used on each system and what integration is included in each SoC.
For the Mac mini, as an example: I imagine Apple calling the entire line just "Mac mini," but throwing in a higher-spec model with an M1X (or whatever it's called) and all the extra RAM and I/O options that entails. Ditto the MacBook Pro line. Ideally, Apple would simplify the laptop line such that Air users get an M1-like basic chip while all Pro models get the souped-up parts, but I can imagine there being arguments against that (say, wanting to keep the 13-inch MBP base price relatively low).