Basing on the currently flow of Bitcoin's price today, I should say Bitcoin will touch $40k - $50k during the last quarter of 2018. With these rapid increase of price it would be possible for Bitcoin to hit my speculated mark, although there will be a corrections next year but I think it doesnt stop Bitcoin to continue its growth. Bitcoin is gaining more and more popularity its being widely recognized globally. There will be a huge demand in the market for the upcoming years and it will not stop increasing its value until the very last piece of Bitcoin is mined.