Hi Dennis,
Being an Annual Passholder certainly has many
perks and benefits, even beyond the most obvious one...being able to visit the Walt Disney World Resort as often as possible!
While there have been promotions from time to time allowing Annual Passholders to purchase discounted tickets for family and friends, there are not any current offers that would allow you to purchase discounted theme park tickets for your son and his family. You are currently eligible, however, to purchase water park tickets for yourself and up to three guests at a discount. I'd definitely encourage you to keep your eye on both the
Annual Passholders Extras page, as well as the list of
current ticket discounts available just in case anything changes between now and your visit.
The only thing better than a visit to the most magical place on earth is getting to share it with friends and family, so I'm super excited to hear that you'll be able to experience a trip with loved ones. Be sure to visit as many
Disney PhotoPass photographers as you can for photos of your entire group that will help you remember this trip forever!
Thanks so much for visiting us at the Disney Parks Moms Panel, Dennis, and have a truly magical vacation with your family!
Missy