"The Olympics have always been the big goal for me, so Tokyo 2020 is my next big goal," Nicolson said.
"Then we’ll sit down and look at what I want to do next after that. Definitely not [turning professional] in the next year and a half to two years, but after that it’s definitely something we’ll be looking into.
"I’ve still got plenty on, I’m boxing in Indonesia in three weeks for Boxing Australia, so I’m staying active.
"Then I come back and I go over to Perth for the women’s worlds trials, so I have to re-qualify for the Australian team again there and it will be preparation in the lead up to the world championships in India in November."
An Olympic Games appearance would see Nicolson follow the same path as Horn, who reached the quarter-finals in London in 2012 before turning professional.
The man Nicolson knew then is the same one she knows now. He has fought on the world's biggest stage but she says Horn hasn't changed a bit since they boxed together for Queensland amateur teams.
"He is so genuine, the Jeff Horn you see on TV is the same Jeff Horn that will be sitting in the lounge room with his family," Nicolson said.
"He is who he is, and I don’t think he would ever change for anyone. That’s something I really love about Jeff, he’s so down to earth and just a good Aussie bloke. He’s a great ambassador for the sport and for the country."
Nicolson is no stranger to success on the world stage after her Gold Coast triumph this year, and the presence of someone special made it even more remarkable.
For years Nicolson heard she was the spitting image of brother Jamie, Australia's first boxer to win a world championship medal.
It took years before she realised just how similar they were when she saw footage of him boxing. Nicolson had never known before because her brother died in a car crash the year before she was born.