My advice, as someone who was waitlisted last year, is to not focus on the waitlist at all. Apply for jobs (if that's your plan of action) and focus on moving forward. Try to get the best opportunities you can to strengthen your app, and remember that you're beginning to re-apply in a few short months.
That being said, accept your spot on the waitlist and whatever happens, happens. If you do find an amazing job opportunity and happen to find out in August that you've been accepted off the waitlist, you quit your job. Until then - do not focus on getting off. That's just my two cents.