What will be the reasons because I want to know? Every speculation must be with proof. If not so then it is just predictions and is not right to follow. The price will increase in September while we are in mid-October and the price is still the same as it was several months ago. There is no positive sign in the market and it seems that the price will not increase atleast in this year.
The reasons for next bull run are simple. When the sellers have no more coins left to sell the bull run will begin. After the Dec 2013 bull run they eventually run out of coins to sell after a couple years, only the holders remained, plus the regular buyers, the rest is history.
knowing when the sellers run out of coins is the hard part.