Ethereum does not have any brighter future than bitcoin. Bitcoin moves down, ethereum goes with it, that is how the market is been. ethereum is a fantastic smart contract platform but BTC will remain the leader.
If ethereum gets a good update and ethereum may go to another direction and it will stop to follow bitcoin in a short time. It's not about ethereum will always having the correlation to follow what already done by bitcoin. Anything in crypto is about the hype to create FOMO. Both are having the same future. Ethereum with its smartcontract and bitcoin with its utility usage.