This is an exciting topic. Events change lives and have been a springboard for business opportunities. Events introduce you to another company that offers a new revenue stream. Events are where you can get a sample of peoples' character and skill with a low investment.
Keeping in mind there are many unknowns and variables, here are thoughts and tasks "we" can do to ensure interest and attendance. What you choose, what makes sense, will depend on your talent, skills, and resources. (and willingness to invest time and effort)