The bitcoin's price would stil at the $6.5K to $6.8K margin until the end of the year 2018. The prediction of its price next year or the following years are hard to tell. The datas gathered are not enough plus there are always an unexpected things happenning around us. Maybe the price would still stable at that point or it moon in just a month.
Most of the crypto analyst are expecting for the price to reach $50k dollars before the year ends and that is the reason why you should hold your coins today if you have.
Once it gains strong support of people then it will gain stability though the Bitcoin has most support in the crypto market but it is still left with some more strength that is why it is going unstable. Analysts say that the Bitcoin unstable actions will change into stable conditions with the passage of time.