This forecast is based on the theory of Elliott waves:
From this graph it follows that Bitcoin finished the correction wave after 5 waves and now began a wave that will end at $ 9500-10000 !!! .
After 1 wave there will be a correction to the area of 2 waves, and after that 3 waves will start, which will end at $ 35,000-40000 !!! .
After 3 waves there will be a correction to the region of 4 waves, and after that the 5 wave will start, which will end at $ 150000-200000 !!! . Finish 5 wave in 2020-2021 years.
In my opinion, ahead of us is a very large growth of Bitcoin's crypto currency, and who can make money on it - will provide itself for years to come !!!
I don't know man - i think it will slowly go down to £1000 then slowly go up to £5k over 2 years.