Hiya Jamesey!
Yes, there is a grand total of 12 Post Vore Scenes: 3 scat scenes with the player as Pred, 3 femcum disposal scenes with the player as Pred, 3 scat scenes with the player as Prey and 3 femcum disposal scenes with the player as Prey. Obviously, a match ending in oral vore or anal vore leads to a scat scene, and unbirth leads to a femcum scene. All Post Vore scenes with the player as Prey are have illustrations as well.
As much as I love weight gain content, adding more illustrations to show the opponents getting fatter after your loss would rapidly bloat our art asset budget, especially if I were to attempt to show a progression of the girls getting heavier and heavier every time you lose to them. Dedicated weight-gain in updates doesn't seem super likely, I'm sorry to say.