As
Mats have already touched upon, expecting any "OC beast" is probably unrealistic, the times of great OC potential is surely gone, and new generations from both AMD and Intel is likely to have little OC potential going forward. And if there are any models with great potential, those would be exceptions rather than the norm. Overclocking at this point requires extreme cooling for marginal gains, and is no longer "worth it" for most enthusiasts.
Even though the total power consumption have increased a bit for CPUs in the past few years, that's not the biggest problem. The big problem is the thermal density, which is explained a bit in
this video. It's really not that hard to cool the HEDT CPUs which approaches 200W at stock, but the i9-9900K at "95W" quickly gets into throttling territory, as a CPU with higher thermal density needs a much more overkill cooler than a CPU with higher total consumption but lower thermal density. This problem will only increase with node shrinks as long as the shrink factor is higher than the reduction in power consumption. AMD's strategy of putting chiplets "far apart" may help a little bit, but we'll see how much fairly soon.
I still would remind people to manage their expectations. At this point it seems like "most" are expecting a 16-core at ~5 GHz, with great OC potential on top of that, ~15-20% IPC gains, very low price, low TDP, and memory speeds of 4-5 GHz. How realistic is all of this?
