MBP 16 is not coming out anytime soon. If it was in the offing, both 2 and 4 port M1 MBP 13's would've been released. The iGPU of the M1, while good, is still not full mid-tier dGPU that the 5500M currently is at.
Given that the current M1 machines blow away their Intel replacements, I would expect the same of the MBP 16 replacement which should have a CPU/GPU that kills both the i9 (which is still more powerful in multithread than current M1) and 5500M or even the 5600M GPU's.
Given that the current M1 machines blow away their Intel replacements, I would expect the same of the MBP 16 replacement which should have a CPU/GPU that kills both the i9 (which is still more powerful in multithread than current M1) and 5500M or even the 5600M GPU's.