Thanks, glad you're enjoying the game!
Content already in-game is unlikely to receive any major additions; one of the last things to add for all predators is some game over scenes. New predators that get added though, like Spider girl, will very likely deviate a bit from the Oral vore angle by taking advantage of their monster body. When this point is reached, I will be adding a setting in the options menu to avoid these scenes and stick to Oral only if desired.