No mate if that drastic declined happen again at the end of December.  bitcoin value will stay stagnant around 6-5k  and it will not fall on any cheap prices . Because bitcoin still have resistance level .which is the bottom price due to the demand and supply from some big investors that still believing on bitcoin posibility and promises in the market , so as long more investors keep holding on it there's no tends it will nose dive to any cheap prices even there's a drastic decline. In fact if that times happen reason as well to buy more bitcoin especially for long term investors because it's a big opportunity to buy cheap and to gain massive profits in the future.