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?
Try to analyze the movement of the market and you will find out that once bitcoin dumps everything will follow so expect that it will the same with ethereum to. Also before we can see that scenario what you said Eth should get a huge adoption or convence the bitcoin supporters to shift their investmenr unto them. But for now since bitcoin is the face of cryptocurrency I doubt it will happen.