In my opinion, the price of ethereum in the amount of $ 1,000 is not something completely unreal, we may be able to get closer to this mark by the middle of 2019, and maybe much earlier.
But personally I find it very difficult, because nowadays electronic money is too much, it is not easy for the ETH coin to rise suddenly, I think if they increase it can be only $ 500, can now rise more strongly than this price. that's my guess.