Give the option to change favicon via administration

Ability to leave comments and discuss on pages (like MediaWiki).

It would be nice if you could easily add pages to the navigation menu. Right now, when you add a link, the only options under target type are 'Home' and 'Internal path / External link'. Next you'll have to type in the exact path to your page. It would be a lot easier if you could just start typing the title or name of the page and a dropdown would show possible pages. I think this could be linked to the autocomplete links feature request.

I have going on 1000 images. Very hard, if not impossible, to find the image I am looking for. A search bar would be much appreciated.

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.

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.

How can I insert reference to other page of my wiki space?

What if I need to edit html text, while I created page with graphical editor?

For great visualizing of system architecture https://github.com/mingrammer/diagrams is the best available open source solution

Bulk import from some file