Have a template or transclusion function, just like in MediaWiki( https://www.mediawiki.org/wiki/Help:Templates ), which would give people the ability to create infoboxes or other types of templates that are used on many other wikis.

Images should be pasteable via clipboard ctrl+V as a shortcut, similar to how Github's MD editor works. This would be a gigantic time saver.

Save current state of the buffer when editing a page, so in case the page is closed or the browser crashes, the work is not lost. This would work better with a warning when the page has been changed since the time the draft was saved.

A modular notification system. Users, User groups, Admins can be notified about events. For example: Content events (new page, updated page, deleted page) Admin events (new registration, failed login attempts, failed git sync,....).

Currently when moving or renaming a page, all existing links point to the old page. The correct behaviour would be to update all links to the new page, either optional or explicit.

It would be great, to add an embedded way for PDFs.

Support for child navigation items to allow dropdowns in the main navigation pane. If you have a large wiki, it can be hard to organize your pages without some type of collapsible navigation.

Looking for a nice way to share (formatted) wiki pages with external links intact

Implement option to automatically generate a KB number for that page. For example: Theme: Notebook KB 0001 - How to update the operating system KB 0002 - How to install antivirus Unique identification of knowledge articles, such as "kb0001", is a common practice in knowledge management systems and information libraries.

Writing tables in markdown is very difficult and annoying. It would be nice if you could add this ( https://github.com/susisu/mte-kernel ) or similar package to handle them. This looks easy to implement, and could improve markdown a lot. A little effort will bring many benefits.