"We hope it will bring closure for everyone."
He said Mr Mncube, who had three months earlier forced the same tiger - Abu - to let go of another keeper, would not have wanted the animal destroyed.
"I just hope they work out a proper system to protect people and the cats because no one really knows what's going on in these cats' minds."
Mr Shumba also wanted better planning and insurance for zookeepers after he had to raise money to fly Mr Mncube's body home to Zimbabwe for burial.
"There needs to be an insurance system so if something like that happens they know what to do and how to help out rather than the family running around being the ones trying to source funds for burial."
He said it was only through the generosity of Whangarei residents and a businessman, and the help of staff at the park, that they were able to get his brother home.
Mr Mncube grew up in Hwange National Park, the largest game reserve in Zimbabwe. Mr Shumba recalled: "We used to bottle-feed these lions. The cats were his babies."
He said Mr Mncube's partner was a "strong lady" who had coped as well as she could with the tragedy.
The Government's labour service prosecuted Zion for "failing to take all practicable steps to ensure the safety of employees while at work".
Last December, the company was ordered to pay $60,000 in reparation to Ms Arnott.
