Even if it gets rejected and I believe it WILL get rejected, I think they price might stay up.
Totally exspected, due to halving effects. If it has been fivehundreds before halving, you can experience 2x of that afterwards.
The price doesn't have to double after halving, it is about buyers and sellers. Take the first halving for example.
Remember also that with each halving there is 50% less coins left to be mined. That means more coins in the circulation and presumably more hands that want to dump it, if the price to sell is attractive. That has to be compensated by more new money flowing in, otherwise the price will decline.