Most likely one will be offered if Galaxy's Edge does not increase more ticket sales to the theme parks. If the second ride Rise of the Resistance opening December 5 and the new Star Wars Movie - The Rise of Skywalker coming out December 20, 2019 does not generate more bookings next year, then most likely there will be an offer before Disney's 50th - which is October 1st, 2021. There will be a gap.
After going the past year - multiple times due to the last annual pass offer - Platinum for the Gold price, the prices of food and everything has gone up in price. My large Mickey Waffle at Contempo Cafe at breakfast was $6.99 a couple of years ago. Now it is $9.99. Mickey Bars are now $5.75. I remember they were under $4.
Yes, Galaxy's Edge was cool, but there was only 1 ride, and the rest were shops and restaurants.
We are definitely take least a year or two off after our annual pass expires.