it is possible that your prediction can be fulfilled because right now everything is in green, although it is still not stable because there is still a downward movement. but obviously ethereum will be able to reach a price of $ 4K in the future.
As for the price of $4K, Ethereum has already reached it this year, namely in April this year if I'm not mistaken, but for the future I'm also sure that Ethereum will be able to achieve it again and even more than that.