Yes, there are many more scenes planned for the game, but since these scenes are at the very beginning of the game, they will be simpler.
Just curious, but how do you get the second wolf oral scene? Is it random chance or do you need to do something specific? Because I've been playing v0.84 on Android infrequently (while deliberately only going for the wolf because I'm simply not interested in seeing her with either of the slimes) and I've only been seeing the first one.