Eth is developing because of its good standard in the market.But it cannot defeated bitcoin ,it was the strongest crypto that ever made. Its seems so impossible but it always next to btc.
The project developed by eth itself is very useful for its users and has an active team and keep improving its development, making eth become high trust by society. to beat bitcoin is definitely not possible because as we know ethereum also still follow the movement of bitcoin itself, if to live side by side with bitcoin will likely continue to happen.