Williams was forced to pull out of an exhibition match against Victoria Azarenka in Thailand at the end of the month after undergoing surgery on her problematic big toes.
The procedure cast a shadow over her preparations for January's Australian Open, but Brisbane International tournament director Cameron Pearson has received assurances from the American's agent that she will have recovered in time to feature at the Queensland event.
"She'll be fit and ready for Brisbane," Pearson told AAP. "She just needed a little bit more time than what the Thailand exhibition match gave her to be ready.
"I guess it's a bit of a compliment that she wants to tailor her preparation [for the Australian Open] around playing Brisbane."
The Brisbane International runs from December 30 to January 5.