Do you think it's possible that the Bitcoin price will follow Ethereum price in the future? When Ethereum becomes proof of stake and becomes deflationary, can it happen?
Ethereum is correlated to the movements of bitcoin and it is not the other way around, this has been true since the existence of ethereum and it is true for almost every coin in the market except stable coins and coins that have not been on the market long enough to draw conclusions from their behavior if we compare it to bitcoin.
The only way this could change is if ethereum took control of this market and became bigger than bitcoin and got more support from the community, which is something incredibly unlikely as you may know already.