Yes it will predictably happen but it will not end there. The nature of the people in the market will always buy them back at cheaper prices because there is always a chance that it will be priced more in the future. By the time BCH deposits are open the price might be high enough to make it go back down to $500 caused by the dump and then it will rise again.

I may be wrong but if I am right then BCH is trading at a discount right now in some exchanges.