Price of bitcoin will go down until 2800-3000 USD. This is my estimate. Then it will stay at this price for 60 days - 1 year (2019-2020). Then it will start to go up to 400 000 - 600 000 USD. This will happen very probably in 2022-2023.
I don't believe that this is even possible but for the sakes of all of us, let us hope
400.000USD, that is a digit to think about