Notifications integration would be a great addition to the course page features.
Here's my take on Notifications that would be useful, in order of impact:
Student article (or talk page) is edited: notify student working on that article, notify reviewers for that article
Course talk page is edited: notify instructors, volunteers, all students
Student enrolls: notify instructors, volunteers
Student is enrolled by instructor: notify student (and volunteers and any other instructors)
Student adds article: notify instructors, volunteers
Article is added to student by instructor: notify (other) instructors, volunteers, and student
Student article is created: notify instructors, volunteers, (maybe) all students
Student article is deleted: notify instructors, volunteers, student working on that article, reviewers for that article
Version: master
Severity: enhancement