The number of long-term ETH holders is increasing as whales appear to be eating up the coin's stock.
Another catalyst that is likely to increase the market capitalization of cryptocurrency is the growing interest in irreplaceable tokens (NFT). The undisputed home of the NFT is Ethereum. Every major NFT market is a Ethereum market. Of course, other chains will do NFT, but as often happens, all the liquidity and all the most valuable things are in Ethereum.
Ethereum can also benefit from the growing adoption of decentralized financing (DeFi), which is "the biggest thing happening in cryptocurrencies."