If HBK wouldn't come back to wrestle his best and most successful former student Daniel Bryan, I don't see why he would come back for AJ Styles.
I loved me some HBK but that era has passed. Undertaker/Kane/HHH/Goldust are the only ones left from the pre-Attitude Era (The New Generation?) still on the roster I believe.
True
They even went as far as planting the seeds for the match by having HBK cut the heel promo on D Bry, but it never went anywhere