I think yes they can reach $15k within this month because the December are just getting started and the price of the bitcoins had almost reached $14k but then fall for a bit but i am sure that before this year ends the bitcoins will reach for that price so you better hold on to your bitcoins and have a little bit more of your patience because you money can grow even more. Just sell it after the year ends because bitcoins are just like a bubble that is what statistics have been predicted.