Can a sliding genioplasty be reversed? 1 year post op and unhappy with protruding chin (photos)

I had a sliding genioplasty and jaw reduction a year ago and am unhappy with the genioplasty since the chin feels too protruded and looks weird and rugged when I smile or talk. Is it possible to reverse it to the picture on the right (retouched)? I'm wondering how to make up for the cut off part of the jaw line used to smooth out the sliding since if I want to reverse it wouldn't there need to be something to substitute for the circled part?