I think that there will a decline in price but it would be as bad as you suggest. BTC might get baco to high 900's or close to 1000$'s but I am not convinced that it could be any worse than that.
The declining of the price will always there, but I might be not believed If that price will get a biggest bearish after the negative news about the ETF approval by us securities. but $1000 is the maximum downward for bitcoin. No matter what the decimal although the price still above $1000.
On the one hand it seems $ 1000 is a significant cost but for some reason it seems that the fall will not stop at this level and go below at least a short-term.