1. Schedule publishing of changes for already published content
2. Support for quick edits in content studio where you can edit certain content fields without loading the entire preview, similar to Wordpress quick edit. I guess the fields would require some form of annotation.
3. Support some form of advanced search (like NoQL), so I can do _path contains “/this/path/”, and sharing of those searches with others, for instance by using URL query parameteres
(The two first ones comes from CRM and marketing in our company, and the last one is just me 
)