can my overall mouth shape deform the mouths?

When my mouth makes a wide smile, opens wide or does a tight pucker, I want the overall shape of my face to deform the patch that the lip sync visemes are animating on,  that way the stocatto motion would feels a little bit more emotive.   Ideally I'd like to deform the eyes layers in the same way. 

Essentially use the facial tracking points as a deformation lattice on top of the replacement animation underneath.
Possible to get on the roster of future features? 

it would make the characters a lot more expressive...