1000$ should be the target for 2018
I think it must be redefined end of next year. I also expect $1000 in this year but the holidays are coming and the prices are not going up much.
I believe ETH will go for that. But as it's historical record since from existence, I can say that it's price increase in the market won't be the same as bitcoin. A rapid increase of bitcoin is contrary to eth price, but it's gradually increase still have possibilities to reach that amount or more.