The long-awaited transition to Ethereum 2.0 may take place very soon.
After the approval of this proposal, the zero phase of Serenity will be launched, during which the transition to PoS will take place. This is expected to happen this year or early next year.
The Ethereum 2.0 update should address network scalability issues through the concept of sharding.
Serenity Phase 0 is the first stage in the complex multi-stage launch of Ethereum 2.0. The next phase is expected to launch in 2021.