So in the short-term might be spike, because of holidays then a decrease. But then again with the release of ASIC allowing for greater hashrates with less variable cost, who knows what might happen?

Take for example, the 1.5THash/s BFL rig, it costs $30k now, I made some estimates;
http://tinylink.net/BtcCalc_THash/s

~Reall blue