Plugins can extend the Gutenberg Editor. Using widgets & embeds, plugins like slideshows and forms can be added to pages without shortcodes. Elementor and Divi have plugins that allow you to access templates right from the block editor. And several plugin developers are offering professionally designed blocks and templates you can add your own content to.
But what is really interesting to me is that you can combine all of these on one page. You’re not restricted to only creating a page with Elementor or Stackable or your own design. They can all be combined on the same page accessed through the editor.
Some examples of Atomic Blocks, Qubely, Elementor & Stackable.