Full site editing is a focus area for WordPress developers in 2020 and 2021 and it progresses fast with frequent changes.
The Gutenberg plugin is updated every two weeks and some full site editing features are included in WordPress 5.8.
Matias Ventura, lead architect of Gutenberg, posted an updated scope for site editing on June 30 2021:
- Template Editor –Site Editing Infrastructure and UI: Part 3 #27814
This includes listing and previewing of templates and improvement of template parts - Patterns –Pattern insertion tracking issue #31153
Improvements for contextual patterns and inserting patterns with / slash command. - Styling Block Styles Breakdown #20331, Design Tools Overview #33447
Improvements to global styles but also to the design of the editor and controls themselves.
Completing the navigation block is also a priority.
Full site editing overview and scope
https://github.com/WordPress/gutenberg/issues/33094
Past milestone: https://github.com/WordPress/gutenberg/issues/24551