Isn't a successful waitlist sweet?! Congratulations, especially after other not-so-happy-endings.
We had to cancel our BW view rooms in January while DH has cancer treatments and are waitlisted for BW view rooms we rescheduled in April. It is a busy time at WDW, so chances aren't good, but you can bet I will be as excited as you if the waitlist fairy sprinkles some of that pixie dust our way!
Enjoy your trip -- and tell the family so they can have time to anticipate the fun!