Your program plan contains a section on how you'll keep a variety of audiences up-to-date about your activities. Don't forget that your "community" of people stretches beyond your program participants. Prospective instructors, other Wikipedia editors, academia, journalists, fellow Wikipedia Education Program leaders, and more form your larger community who may be interested in your activities as well.
As you enact your program plan, be aware of this larger community, and give attention to it as you have time to. Reach out to local media to get some attention for your project. Write a post for the Wikimedia blog about your experiences. Publish something on your chapter blog or on your language Wikipedia to keep your local community up to date.