It's always possible to return to <$200 ... but not likely. The chance of hitting another all-time-high are much greater (in my opinion), then the chance of being at the $200 level. There are thousands (probably tens of thousands) of people just waiting to have another chance to buy at the $350-400 range. I really doubt BTC would drop remarkably below $350.
I wouldn't be so sure. Either way it's still speculation, though it would be interesting to see how far it can fall but I think there always those people who are desperate to get in and will keep the price propped up a little.