I would be surprised actually if anyone were surprised by the most recent dump. It's been the flavour of the month if not 2 months past, profit taking at those highs and low volume pumps to push past 12k artificially.
Definitely my money is on a few more sub 10ks if not 8k or lower like you say, and way past December. That's not juat me being pessimist, though, contrary I think that it'll be better for the long run.
People are always surprised when the price of bitcoin goes down and it is being going on for a long time, even i consider it as an opportunity if the price goes down so that i could enter the market before the big rally, all of my expectations are considering that the price would rally and break another all time high valuation after halving like we saw in the past and hopefully we will see the same trend this time too.
I would't be surprised if the market is a bit bearish for the entire month.