As BTC price is currently exponential I believe that using curves is more accurate. So I combined both curves and lines following the main tops & dips of 2017. We get a price prediction of +$20,000 / BTC for february 2018.
Bitcoin is in the grips of the next bubble, how it gets to the end is anyone guess.
Supply is shrinking because everyone expects growth, that's drives the price up and this type of cycle always ends in tears and lost fortunes when people attempt to get the actual value out.
If everyone decided that gold will become extremely valuable in the future and began withholding it from the market - we would have 10k gold prices in no time.