I fear for ETH future, almost all smart contract projects are using the PoS staking algorithm but only ETH PoW stands alone, this makes ETH different and one of a kind smart contract project, I think vitalik buterin will regret is decision after ETH goes PoS.
I think you don't worry too much, talking about ethereum, according to what I see ethereum is the top altcoin in the market trend, and I also heard that the presence of this POS is something that the ethereum holder community has been waiting for.