As noted in the Phase 2 post:
The first step for phase 2 will involve upgrading the widgets UI to incorporate a modern block editor that is consistent with how you edit pages and posts in Gutenberg to create a clear, consistent editing experience across different areas of your site.
widgets.php would become something more like this, which is an early sketch, but you can see that all of these widgets are represented as blocks.
and split screen of changes:
We'll need to determine if these mockups are the right solution. Let's dig in!
As noted in the Phase 2 post:
and split screen of changes:
We'll need to determine if these mockups are the right solution. Let's dig in!