I don't think there's been any rumors suggesting that the ride queues will have scare actors, or any part of Dark Universe for that matter. Gregory Hall stated in a panel that the queue for Monsters Unchained will have "jumpscares", but that will likely be accomplished through lighting/sound/screens, and not be comparable to what is found at HHN. There's generally too many liability issues with keeping scare actors in ride queues, and I imagine there were guest complaints because of them being featured in the Kong queue.