Are you kidding with us, dude? What did you refer with the term VALUE? Did you mean the marketcap or the price? Anyway, as long as ETH supply isn't limited, I can't see something big for ETH. The chance of having an ATH is too low provided the usage of ETH has been decreased significantly. Also, only updating to PoS doesn't make it more valueable coin. You know the staking process isn't so easy because there will be a requirement of 32(33?) ETH to hold on which I think not a lot of people will favor. Anyway, there are a lot of PoS coin out there, although they are not much popular. Although PoS has a greate benefit over PoW, I still think that it will not bring much influnce at the end. May be a short time pump.