On a less scientific, more opinionated point:

I think BTC will, in about March, finally break the $1,000-1,200 barrier. It will make a few big fluctuations, and by the end of the year it will be holding steady somewhere between 1,500-2000.

Unless, of course, China decides to lay of on their rules and declare BTC at least a private currency. In which China will probably start to drive the price higher, and investors will start buying like crazy to try and get in "before the boom" then the price could see 5 figures before year end...IMO