Dude, change your title to be more specific!! It is too general!!
Well, no one knows the exact price of BTC in December. The price of BTC in the next few months will depend on varied factors. If we have positive news later, the price of BTC should increase. But if the FUDs continue, the price may tend to drop more. Ideally, the price of BTC in Q4 will drop, but sometimes there is a surprise in crypto market.