It is possible for Ethereum to hit that amount in 2018 but not as soon as it could be. As we can see, the price is increasing but not as high and not as rapid as bitcoin is. Definitely it will reach $1000 and will be over too, but first we have to be patient and try to hold our coins until the good fortune of Ethereum arrives.
Wise opinion. I think etherium has big future but really not that soon.
It will grow but slowly slower than bitcoin. But the price next year will be over than $1000. I am sure. I hold my etherium as long as i do not need fiat.