Ethereum 2.0 will involve sharding to drastically increase network bandwidth and reduce gas costs, making it cheaper to send Ethereum, tokens, and interact with smart contracts. There will be fundamental economic changes too, Ethereum 2.0 will allow supports to staking nodes and earn Ethereum as passive income. In many ways, Ethereum 2.0 is the combined effort of thousands of developers who worked for years. So we all expect a lot from 2.0, most of us use the solution to lower the transactions fees at eth network, it will be nice to see.
Ethereum 2.0 will be launched in 3 phases:
Phase 0- Beacon Chain
Phase 1- Shards
Phase 2- Execution