When Ethereum rebounded to around 750 dollars, the big probability will drop to less than 600 dollars. Don't worry about the bottom. There will be better opportunities to wait patiently.
I think it can come down to satoshi price of 0.03 which will be a real bargain price.
As usual it will rebound hard in the next cycle, as now most coins are down so eth is also falling along with them
If the ETH price does go to 0.03 bitcoin, I will sell all my BTC for ETH.