If bitcoin network reaches a increased user profile around 25% from the current number of users bitcoin has the possibility to give a stable price by 2020.
i think that the stable price might be reached by that year though i definitely wouldnt like it because it would be as boring as gold then
But for me it will not be boring as I want this coin as a permanent currency like other traditional currencies, with that we will be able to put all of our money in bitcoin and we will not have any fear of its price fall. and if are doing trade and want fluctuations in bitcoin then I will prefer to trade with altcoins, as these coins are giving much higher profit in trade, try to invest in LIR and other coins like that which have a great potential to increase in value in the coming future.