Just about possible, but timeframe looks wrong for that. IF we are going to $3k (hopefully not) , then it will take longer. The market may be too mature for that type of volatility.

A stall in the 5k to 7k range for another 6 months, then a slow roller-coaster climb to 12k in 2020 is perhaps more realistic. 100% ROI in 15 months is pretty good.

Ultimately, with the numbers of large alts now becoming more globally viable, it is worth considering the possiblilty that BTC has seen its ATH already.

Even some of the more optimistic predictions back in 2013  had 10k as the final target, and a steady decrease in volatility as that price approached.