I was talking about this yearI think it is more likely
-M1 with 4+4 CPU cores and 7 or 8 GPU cores based on A14
-M2 with faster 4+4 CPU cores and 10+ GPU cores based on A15
-M2X with faster 8+2 CPU cores and 16 or 32 GPU cores based on A15
Then going forwards the lower end units (MBA, low end MBP, 24"iMac, iPad Pro) will get M3, M4, M5 etc and the higher end units (14-16" MBP, large iMac) will get the M3X, M4X, M5X etc with perhaps an M3Z etc reserved for the Mac Pro.
They will not call the mba air M2 for sure since its just a faster clock m1 with additional 2 gpu cores
But again these are just names in the end
The point i was making is that the mac SoC family in 2021 will end at number 3