The developing community behind ETH is huge and once most ICO projects have sold all their ETH that they received in 2017, I am sure we will see the price rise again.
in 2020 ethereum will reach 1000s again. dont wait this move in 2019. in 2019 ethereum will be between 10 and 150.
So is my current assessment of ethereum's price too. I think he could reach the $1000 again in 2020, but only if it comes to a bull run. Without a bull run i think it will be rather a price of $400-$500.