I strongly agree that the price of bitcoin is rising again, even today it is in the range of USD 8000. But until December 2019, according to my prediction, it will be in the range of USD 11000. To reach USD 15000 in my opinion it is rather heavy.
But in bitcoin trading anything can happen, and this has been proven when December 2017 the price of bitcoin reaches USD 20000. Whether such a high increase will repeat again or not, we just wait. In my opinion, the bitcoin trade is experiencing very good growth.
My prediction for December 2019 is different from you, in my opinion, bitcoin will be at it's highest price in the start of December. It may be cross 20k$ again as predicted by some analyst. Now Bitcoin is trading at $8,115.99, it will stay between 7k$ -9k$ for 1-2 months and then it will start rising.
Its early to know what will happen to Bitcoin price by the end of this year some analysis believe it will hit again to its all time high but bases on the chart I see Bitcoin will only touch the $10k to $15k level and will dominance to 2020 halving but like other said in this forum Bitcoin price is so unpredictable meaning your analysis can be possible no right answer regarding Bitcoin price.