Yes the Thunderbolt controller etc are integrated into the SoC of the M1 Yesterday's models just replace the Air and lowest spec Pro Seems likely that next ye

Yes the Thunderbolt controller etc are integrated into the SoC of the M1 Yesterday's models just replace the Air and lowest spec Pro Seems likely that next year or so there would be an "M1X" chip with more RAM to support the higher end Pro models - the 16" and rumoured 14", hopefully both with four ports