Vore is unlikely, Indivi has said they aren't big on that. Weight gain, I'll let Indivi answer that one, that seems probable.
Vore is already in the game; lose to nearly any of the enemies in the area around the forest village and you'll get a scene for it.
To be fair, I haven't lost to any enemies around there, think the only times I've lost is against Mystria (the succubus-plant-tentacle lady in the old base). I flee from the snake and beat up the pitcher thing, so...
They're both soft vore (full body consumption, no gore, no digestion) but they're there nonetheless.
