We should run a betting pool for this. I'd bet at even money than more than 90% of online signups fail to complete the course. Give me decent odds and I'll bump that up to 95%
I think you're being way too optimistic. I'm guessing about 5% of sign-ups will ever actually follow the course once it starts, and of those, I'm guessing less than 5% of those people will complete the course.
