yes it is usually rise from the end of November until the end of January, but i dont think this year the price of cryptocurrency will rise significant in the end of year, because market are so bored and there are no something huge that can pump the price. it will be good for bitcoin to stay in between $6000 - $9000 until the beginning of 2019.
its annual trend that very end of year the price usually rise, there are many reasons for this explanation, in addition to cryptocurrency market cap and there are many new invostor coming with year end bonuses.
Yeah you are right. The price will not increase this year because there is no or very little demand from all over the world and I dont think that without big investment the price will go up. Now people understood that the market has been manipulated by big investors and will not let small investors to make money from their investment. Thats why people are not interested in bitcoin investment.