It's not over yet, as long as Vitalik still has tens of thousands of ETHs personally, the opportunity for ETH to return to the highest price is still there. I believe that Vitalik still has tens of thousands of ETH and did not sell all ETH assets in 2018 ago. I am sure that the price of ETH can reach the highest price again.
If he had sold 100$ million in 2017, I think he had sold most of his ETH. In 2018, I read an article about this issue and I found Vitalik's ETH address, it seems that he no longer holds too much ETH. Anyway, hopefully he can help this project grow continuously and the price can surpass ATH 2017, although it is very difficult for the current market situation