As long as there are still projects backing Ethereum, there should be nothing to worry about. Development has been quite strong over the past months, despite a steep decline in interest among everyday people. Sooner or later, the Ethereum blockchain will scale towards millions of TPS becoming extremely versatile for smart contracts. While other platforms are ahead than ETH in terms of scalability, they're still lacking security and reliability. That's something important to consider, since it's not about speed or efficiency but rather long-term sustainability. I guess that's the reason why ETH is still the second-largest cryptocurrency by market cap.
Ethereum may be getting old in the short term, but demand will rise again with the upcoming developments of the platform. ICOs are over these days, but the world's most popular smart contract platform could prove to become the home of IEOs and STOs. With a proper regulatory framework for digital securities (especially within the US SEC), ETH could gain traction among institutional investors worldwide. But we have to be patient in order to obtain good results with ETH. Just my thoughts