I've already suggested making improvements to the cms of nop - mainly the ability to build menus and add topics, categories and products to these menus.
I believe that doing the above would enhance nop in such a way that users could make much more use of topics than they currently do.
Therefore, I think we should look at expanding the functionality of the topics admin pages :
1) add an additional search field to Admin/Topic/List so that a user can find specific topics quickly
2) on the topic page itself, add the ability to select a particular template for that topic ( the same way that we can choose a template for products, manufacturers and categories) - we would need to add the ability to include templates via admin
( eg Admin/Template/TopicTemplates )