Many are wondering whether Apple will switch the Mac from Intel chipsets to its own A-series chips. That's the wrong question. The real question is when it will do so.
For an important hint at how this will happen, I strongly recommend watching the Computer History Museum's two-part Oral History of Avadis Tevanian on YouTube. Over four and a half hours, Avie---as he prefers to be called---tells the story of he designed the Mach operating system, and how he brought this system to Next for NextStep and OpenStep and later to Apple, where it became Mac OS X (now macOS).