i dont think so,i think it will hardly come down to 550$ and after that it will start rising again. so we should not wait for 400$ and try to buy some new bitcoin in 550$ price, because if the price start increasing it will not give chance to any one to buy it. we can see the market speculation that shows that the price of bitcoin is going to be so high in next few months.
and the price wont come back to such small numbers for sure, in my opinion right now the only way is up to the biggest prices that have ever been reached