A $4000-$5000 BTC in 2014? I don't think so IMO.
I expect that in 3-5 years.
I think (and hope) there will be steady avg 5% growth per month for BTC.
The most exciting prospect for me in 2014 will be WDC (WorldCoin).
BTC will have a crazy ride this year, but will be up for the year.
I am also very excited for WDC this year. Will be the first alt-coin out to implement an US based USD-WDC exchange. Very exciting!