Nicholas Tadros, 10, was on board one of two helicopters involved in the crash at Sea World on January 2.
His mother Vanessa Tadros, British couple Ron and Diane Hughes, and pilot Ashley Jenkinson died after the two aircraft collided mid-air and one crashed into a sand bar.
Family priest Father Suresh Kumar and said the grade 5 student continued to take baby steps toward recovery in an emotional update to social media.
"I am very happy that I spoke to our little Nicholas today. I had tears when (his dad) Simon said that Nicholas wants to talk to me," Fr Kumar said in a social media post.
"He thanked all those who are praying for him."
The Bethany Catholic Primary School student remains in a critical but stable condition in Queensland Children's Hospital.
Fr Kumar said Nicholas's health was continuing to improve, but it would be a long road to recovery.
"Overall, our little champ is fighting the good fight (remember he knows karate as well …) and keeps improving," he said.
"A billion thanks to God. He doesn't have brain injury. Simon is able to talk to him, and Nicholas responds very clearly with names, dates, etc, though his voice is bit slur (sic)."
However, Nicholas was still in danger of having his shattered right leg amputated.
"We have got to keep praying that his leg is not amputated as the danger of loosing (sic) his leg is still looming.
"Most probably, the doctors will decide about it by next week as the virus infection is still severe."
The results of a probe into the collision by the Air Transport Safety Bureau are not expected until at least September 2024.