The price of ETH will be approximately $300 in 2020. My prediction is positive but the next market conditions will show how strong feelings I have. The ETH deserves to be $2000 coin, in my humble opinion.
It all depends on when the ETH fork happens, if it happens in 2020, then of course the ETH price should rise very much, if not, then the ETH price is unlikely to rise much in 2020.
Have you heard about the ethereum 2.0 update that will be done early next year? but the reforms that occur I don't think will make the ethereum market growth so visible. this is just a system change from ethereum, not an attempt to increase market demand. but we still pray that with renewal there will still be an increase in prices.