One of 2 things are happening:Apple's own marketing slide mentions M1 Ultra is the final member of the M1 family so I think there is a decent chance Mac Pro's SoC might not be based on M1.
- The Mac Pro is dead, replaced by the Mac Studio.
- The Mac Pro will live, but with a different chip altogether.
Apple mentioned one more Mac was due to be released for their transition to be complete, and everyone assumes it is the Mac Pro, however the M1 lacks the features of x86 processors which means they'd need a new chip. They also, on the flip side, killed the 27" iMac, so now you have to ask yourself what the final product will be. It may be a product that doesn't even exist today. One theory I have is that the Mac Studio is designed to replace the Mac Pro, and the final product will be a server, possibly rack mounted. We will see.