Without a doubt, this is one feature that every 3ds max animator is desperately in need of.
There are no tools out there that simplifies the process as nicely as advanced skeleton for maya.
So, how about we have something like follicles in xgen, or a new kind of helper object that can be attached and linked to deformable meshes without throwing back a dependency loop error.
A helper object that can move with the lip for instance, and can also be used to control the weighted portions of the lip or objects controlling the lip.
There are alternative ways of cheating this by creating a Dorito effect, but this has proven to be inefficient in large scale productions without being a coding expert, and it also takes a heavy toll on viewport performance.