In my opinion this is totally wastage of time  to make predictions about the price of bitcoin because the price of the bitcoin mainly depends upon the demand in the market .
So we can predict when the demand of bitcoin may increase .
But it is small possible that we can predict the increase in the bitcoin amount , Usually sometimes it happened that a new service entering in the bitcoin to start his own Bitcoin business in this case they need much amount of bitcoin , when they place order to buy in bulk that results into the increase of price .
So we can say there are only some points to predict at very little extent about the bitcoin price .