Head Hunters president Wayne Doyle could not be reached for comment.
The search for Ms Elder-Holmes' opponent for the KFC Fight for Life card proved to be brief, the Herald's Diary today revealing Shortland Street actor Frankie Adams would be in the opposite corner on December 7 in Hamilton.
"Millie is a good chick, we're friends, and this fight will be really good for her," Adams told The Diary.
Ms Elder-Holmes was reluctant to discuss her fighting credentials, declining to comment when asked if she had ever hit anyone or been in a fight, before eventually offering: "I am not a violent person, no."
She did expect to be able to summon some inner fury for the fight.
"Hopefully, definitely, I am going to have to aren't I? I'll be putting all my effort into it. I was previously studying to be a nurse but after this whole situation [Mr Morris' death] I have had to uninvolve myself from nursing. I don't think it is something that I could do any more.
"I have until the end of the year to decide what I want to do next year and this just happens to fit into that slot. It aligns with my clean eating blog. I am all about healthy living and fitness."
She was adamant she was not being exploited following the huge public interest in her since the deaths of Mr Morris and her stepfather, Sir Paul Holmes.
"I am 26 years old. I am an adult. No one can make me do anything I don't want to do. At the end of the day I make my own decisions in my life."
The decision to place herself in the public spotlight had not been difficult.
"Everything I do gets put into the public eye. I have just come to terms with the fact that I can't avoid it."
