The 28-year-old last competed in a major tournament at Wimbledon in June, when she ruptured a ligament in her elbow during a fourth round defeat against compatriot Kim Clijsters.
At the time of the injury, Henin had concerns it could end her career.
However, she is determined to recover and, after the mixed-teams tournament, will compete in the Australian Open, which begins Jan. 17 in Melbourne.
“I am realistic; it is my comeback, it has been a difficult year,” Henin said, according to the BBC.
“My elbow is getting better, it’s now six months since my injury, and I can’t say I’m 100 percent, but I’m working very hard,” she told PerthNow. “I can improve, but it will take another week possibly a month to really be 100 percent.”
The former world number one had only just returned from 18 months retirement at the beginning of this year, after withdrawing from professional tennis in 2008 and was on promising form prior to the injury.
Henin’s elbow will be assessed during the Australian Open.
“I hope I can build my condition by playing tournaments this year and hope to be really ready around June-July,” she said, according to the BBC.