Its difficult to reach a clear cut price as it's Bitcoins, currently also if you see its only rising because there's speculation that there will be futures coming, and what happens if there is indeed futures and there is no futures so you need to consider this. So fork and everything goes well, I see it at 8k at the start and 12k by mid year, and if more countries adopt then 15k is a reality, on the downfall I see it at 5k and at max 8k by year 2018 end. It's difficult to read between the lines.