If they add all those cores without a major TDP increase, it would be impressive.
Merely adding cores isn't that hard, from an efficiency perspective. It's
also maintaining high all-core clocks that's hard.
At my job, we use 65W-rated i9 CPU's. The all-core clock speeds suffer
massively, once they're done turbo-boosting and actually limited to 65 W. I found the all-core clock speeds, while boosting, are 43% higher for P-cores and 31% higher for E-cores than when the boost period expires and they're only running at 65W. I know I can manually override the power limits, but the machine's cooling solution isn't capable of sustaining a lot more than 65W and the CPU can even hit its thermal limit before it exceeds the boost time limit.
That's a lot of performance left on the table and it helps explain why Xeon W's and ThreadRippers have such high TDPs, even for some of the lower core-count models.
Also If they get a 52 core CPU down in the consumer model lineup and cost structure, it would be a game changer. At least for productivity workloads.
It's 16 P-cores + 32 E-cores (+ 4 LPE cores) with no hyperthreading, though. Also, the dual-channel memory subsystem is going to be a limitation. For some people even current-model ThreadRippers or Xeon W's will provide a better option.
I don't mean to sound too negative, but I do expect such a massive core count will be an awkward fit. Hard to feed, hard to cool, and power-hungry. I have high hopes for the 8P + 16E version, but I predict that the 16P + 32E model is going to be causing headaches for a lot of system builders and DIYers.