Ethereum Foundation: Ethereum's long-term scaling plan is to use SNARK technology to virtually unlimitedly increase core network bandwidth (L1 EVM).
Instead of re-executing each transaction, validators will be able to check for low-cost cryptographic evidence (SNARK). This will significantly increase the gas limit without overloading the validators. All complex computations will be performed outside of consensus by specialized nodes. Users and consensus participants will be able to easily run their nodes even on their phones or watches.
In addition to vertical scaling, SNARK technology opens up possibilities for horizontal scaling. A dedicated precompiler will allow new EVM instances to be launched within the core network, creating an unlimited number of programmable shards known as “native rollups.”
SNARK will allow Ethereum to process many more transactions without increasing the load on the network and will allow the creation of an unlimited number of “child” networks (shards) for even greater scalability.