Correct me if I'm wrong, but with those L2 tricks the plusvalue of Ethereum gets kinda diluted... and there's already a heavy discussion on the "why should I use it at all".
Most L2s will require users to pay transaction fees in ETH. Some will have fee abstraction where people can pay with tokens, but the rollup themselves will still end up paying ETH on L1.
Ethereum will essentially be a settlement layer for rollups, and everyone will be doing their DeFi, NFTs, etc on the rollups which are almost treated like their own chains.