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).
What for wie need a worldcoin Ehen THW excellent earthcoin alreafy exists :p