ADRs are still 180 days in advance.
We have only been to WDW for Thanksgiving once.
We did Thanksgiving at the Fort in Ft. Wilderness. Basically, it is a shorter version of Mickey's Back Yard BBQ.
It may have been my kids favorite character interaction ever. However, my kids did not do a lot of eating. They preferred to spend the time dancing with the characters.
It is a good option if you don't want to fight the crowds in the parks.