Here is the Deal
If btc Will change to pos of pow ill stay.
BTC won't care if you stay or not or if somebody says a condition that wants him to stay. Like question yourself, who are you to set a deal?
Eth Will do it soon what about btc?
ETH's transition of PoW to PoS is taking time and forget about it to bitcoin. PoW to PoS will never happen to bitcoin. So upon hearing that it's never going to happen, you're not going to stay.