I got inspired by a post here about creating a pose puppet rig to control your model.
I wanted to try and see if it would be possible to create a gen effect that could control the emotion or facial expression.
It kind of got there where you can control emotions based on presets or manually adjust sliders.
I would say its 60% there but you would kind of need a controllable 3D model instead of 2D pivot points.
Anyhow, its fun to test around with the possibilities and see what works and what doesn't.
Maybe someone has a suggestion how to fix it!