I am glad you got the TD changed. I hope you get the good news off the wait list.
While I am happy for you, I can't help but think how unprofessional this looks on the part of admissions. To make your child wait this long, only to put him through the emotional roller coaster of giving him a TD, then to repeal it, is not a good look. It makes you start to question the competency of those making these decisions.
Fingers crossed for you and I hope they reward your son with an appointment off that wait list!