Nothing is certain in this market, We still have the last 3 months of 2018 to hope that the price can reach 18000$ again. Just like 2017, growth is only going to last for two months, but it can happen again in 2018, but it can not be sure. We need to wait until October for everything to be clearer
$18k mark is something that could be possible if we get to see some pretty good move upward this year, but I really would not be counting on it so much, judging from how things have been over the years and for the fact that we are still in a bear trend at least for now. It is hard to always tell what a market will always hold and the thing we can do is to just keep monitoring the trends and then, we can see where it leads eventually, but I would not say $18k is not a possibility.
One thing I want to say that it is cryptocurrency world and anything is possible in this world. I will be very happy if bitcoin price reach to $18000 till the end of this year, but the question is how?
Everything is always possible, but technically, there are some things that one may not seem could be possible much but all the same, as long as we cannot tell what the future holds, it still does not mean we will not always get to see some possibilities or some surprises in the long run. We could say for what it is worth, we can actually get to see bitcoin attaining some good height, and $18k is not that bad, but all this would depend on what the future certainly holds anyway.