If anyone knew the future price of any ‘asset’ they would be extremely rich long ago and would be a household name. Warren Buffet is the best I know, but even he can only price companies based on their balance sheet. Ethereum has no intrinsic value and no balance sheet, it is worth whatever someone is willing to pay for it. It can only be worth more in the future due to the nature of speculative bubbles, which are in their nature unpredictable.