What I love to see as a new feature is a content preview/live preview content editing in backend like CraftCMS or Sanity.io provide. This would be in my opinion a great thing. I like this more than a frontend editing tool.
Thanks for the reply. I posted the feature to idea portal.
The new boxes plugin seems to be good, but it looks like more a visual page builder. My thought is to add a feature that adds the possibility to see a live preview of the website while the content creator is adding/changing the content.