It's called, 6 years later, I believe.
I am the hearing parent of a Deaf 5 year old who's primary language is ASL, and who hears with a cochlear implant.
Here's an article about the follow and what happened after the first movie ended (though I have a sneaking suspicion that one of our posters here has a LOT more information about this story than she choses to let one....)
Hands & Voices :: ‘Sound and Fury' Update