As a trader, I'm a big believer in the usefulness of TA to identify short term trends and patterns in Bitcoin Price.  However, I am also a big believer that TA is pretty useless in identifying mid-long term trends in price.  The mid-long term price is influenced far too much by the fundamentals, namely news and whatever else is happening in the world involving bitcoin, to be able to make predictions like this.  You can have all the bearish pendants, heads and shoulders, and cups/handles that your heart desires and one little news article could send the price skyrocketing.