Development talk:NWiki roadmap
From MoodleDocs
I just want to put my own 2 cents. I would agree with the above posters that discussion forums, grading, and rating are all critical elements to effective wiki use in Moodle. In particular I think the lack of discussion forums in the current wiki is a shortcoming because it forces the collaboration to go outside of the wiki (which can be limiting to the whole collaborative process).
The grading/rating options are also terrific ways to help a teacher assess the results of the collaboration.