Even as far back as 2014, a reading above 60 on the ADX has been a good selling point for Bitcoin.
How to approach Bitcoin trading in 2018?
It is easy to identify and fit indicators and trendlines once the chart has formed. Doing the same with live markets is not an easy task. All in all, it is almost impossible to forecast cryptocurrenciy price movements for the whole next year ahead, because the marker is still young to have developed repetitive patterns of price behavior. Try avoiding long-term prognosis. Happy trading.