Ugh, yet another admin interface.

I hope WordPress updates the admin soon, perhaps as part of the Gutenberg phase 3 (collaboration/workflow).

But please don’t just re-use the React-based Gutenberg editor components, which is way too constrained and plugin-unfriendly for a general admin interface.

A modern WordPress admin interface architecture is worthy of a community-wide dialog. I’d vote for Web components. But whatever modern admin architecture is chosen, it should be a considered decision and not just drifted into.