Afraid we'll get back to $1700-1800 in 2 days.
There's no substance at all behind the last bull run.
My strategy is to sell most during bull runs, unless those price hikes are backed by:
a) Protocol upgrade
b) Mining reward halving
I think you'll find the last drop is most likely nothing to do with core or anything like that.
You're thinking that people take too much notice of that small closed group of people

Whatever did push the price up, even if it was artificial, the pop+fall+recover is pretty much expected like with any stock on a stock exchange.
If the price rises too quickly, people will decide a point to sell, and then you'll see a sell off that will make the price fall.
Next is how far people will let it fall before considering buying it, at what they consider the bottom of the fall.
If it was a quick bubble, like the last week, you'll find the fall will be to a lower level, since in general people will consider the bottom out point to be lower before buying again.