in my opinion, this December will have the same cycle with December 2017, so that BTC will fall again to $ 1500.
$1500 is quite low price for Bitcoin. Of course it might happen but not that likely. Also if ti happens it will not stay that low for that long but bounce over $2000. Also as I understand you are talking of next 2 weeks times. That adds another reason to hard to believe Bitcoin will go that low. There already was quite a reduction in Bitcoin price last month. Price halved. Now would need to repeat in next two weeks and halve again.