I believe it’s not a matter of USD. With this said, yes there might be speculation around as is the case already.
This doesn’t deny the fact that ETH value is not in the exchange in USD. But in the capabilities of the platform to function as a vehicle for the new Internet. As for the little guy and the POS, I believe there will be decentralisation on one side and massive restructuring of powers on the other side. Pooling and grouping can be partially unpredictable to figure out where decision power might be located. Most of the corporations who joined Ethereum know this. Hence, they would like to be the players, no matter what.