The 27-year-old opted to hang up her racquet in May 2008, as she was preparing to defend her French Open title, after admitting she needed a release after 20 years in the sport.
It was thought that she would never again return to top-flight tennis but the Belgian ace, who has won seven Grand Slams to date, announced back in September this year that she would play professionally in 2010 and received a wildcard to the Australian Open.
The talented right-hander has made the final of Wimbledon twice, in 2001 and 2006, but has never tasted victory at the All England Club.
But Henin believes it is a more mature person now that will attempt to win in SW19 this summer.
"It is another Justine Henin who will try and go out and achieve her dream of finally winning Wimbledon," she said. "I don't know if it's possible but that makes it an even more passionate challenge for me."
Compatriot Kim Clijsters won the US Open on her return to the sport after having a baby, but Henin does not feel that her reintroduction will be as dramatic.
"To be honest, I don't have any big expectations as regards results in Australia," she added. "But I will be delighted just to return to the country again, I love it there, and to the official circuit.
"I've never regretted my decision to stop playing but now I'm really excited about the prospect of starting a second career that probably won't look anything like the first, at least in my mind."