More flexible knowledge base design and layout, including custom HTML/CSS

Could we get an update on when we’ll have more design options for our knowledgebase? I’ve tried tinkering around in the design center, but it seems as if the modules available aren’t usable. We’d lke to do the following:
- Change the number of articles displayed for each category on the index page

- Better visualize the subcategories for each category on the index page

- Adjust certain categories to display with full width on the index page

- Add a ‘Continue to Next Article’ button in the footer of certain articles
- More fonts, styles, options for article content

along with a variety of other, more intricate design details.
Ultimately, we would like to better align our knowledgebase with the design standards for other content we produce.