WordPress 5.8 Tatum is now available. This release contains some key building blocks of the Full Site Editing Architecture.
Anne McCarthy, the Developer Relations Wrangler from Automatic gave a briefing on Full Site Editing (FSE) to the WordPress MegaMeetup group last week. Worth a watch.
The WordPress core team is locking down the plan for the rest of 2021. One key decision is when to merge the Site Editor into the core platform.