"It was fantastic to be able to see Diane respond to requests by the nurses to do things like poking her tongue out, squeezing a hand or moving her leg (although the right side still doesn't move). She tried very very hard to talk to us, and we were able to make out certain mumbled words. She held our hands for dear life and wouldn't let go. "She pointed to baby Brody [her nephew] asleep in his pram in the corner of the room and when we brought him over to her, she put her arm up and gently stroked his face.
"We know that Diane's light is on in there somewhere and that every day she will fight to bring it out into the open."
Mr Wilson told the Bay of Plenty Times the extent of the brain damage Miss Wilson suffered was not yet clear and it could be six months before doctors were able to give a long-term prognosis.
"Tomorrow the situation could change for the better or for the worse. We just hope that it gets a lot better," he said. "It's nice to see that she's trying to talk and do those things."
He said the family was determined to stay positive for Miss Wilson's sake.
"She's a strong girl. She's come out of things before and we just hope she does that again."
Miss Wilson was born with Crouzon syndrome, a condition that meant the bones of her skull were fused together, and had numerous surgeries to reshape her face and head between the ages of 1 and 17.
The Bay of Plenty Times published stories and photos about her surgeries. She moved to Australia, where she works in a hotel, five years ago.