For now Ethereum is simply catching the tailwind of bitcoin, like most alts. It is facing increased competition from 3rd generation smart contract platforms like EOS and eventually Cardano. Ethereum desperately needs to make important upgrades and move to proof of stake to stay as the top altcoin.
yes there will be an update for Etherum, so Ethereum will increase and will remain the top Altcoin.
The price of Ethereum will increase so that it can happen in the future the price will be higher, even though no one knows what the future looks like but we can analyze the current situation.