My thinking is that we'll see something similar to what happened after the last meteoric rise (to $1.10!) back in January - there'll be a slow, gradual decline over several weeks, while we all adjust to the new price and difficulty climate, then price will start to climb again.
The basis for this theory is (a) magic - it's happened once, it's bound to happen again, right? Right?! (b) luck - I'd really like price to keep climbing. I'm holding BTC and no USD right now. Generally when I'm in this position price falls or stagnates for protracted periods... :-)
So far it looks like price is stuck in a range. C'mon $4 ...we can do it