It's worth noting that while there are still quite a few caveats to the M1 MacBook Pro when looking at "pro workflows", this is only intended to replace the "low end" MacBook Pro which was already quite restricted.
Given all the missing parts could require a fair bit more development (eGPU support is not something iPhones have needed so far after all), I expect we'll see these on the next generation of CPUs, along with a range of new higher-end MacBook Pros, the iMac Pro, potentially even the Mac Pro.
Given all the missing parts could require a fair bit more development (eGPU support is not something iPhones have needed so far after all), I expect we'll see these on the next generation of CPUs, along with a range of new higher-end MacBook Pros, the iMac Pro, potentially even the Mac Pro.