IMO I think bitcoin's price will drop to around $450 in the next 2 or 3 weeks. The current pattern is showing a very typical financial bubble that is still in the process of bursting. After the bubble has completely burst it will rise again, probably starting in late January, to around $900 around early March. However, you can throw all of this out the window if a G20 country makes it illegal like China did.

(Source: I'm an investment banker following current market data and economic principles)