The US Champion is said to be planning to use the Australian Open as her return to the court to keep her fit for the coming matches.
"She's got her visa, she's entered, she's practising and she's probably just got to find a bit more space for a bigger entourage", he told Melbourne's Herald Sun.More news: Massive black hole reveals when the first stars blinked on
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Williams has been away from the sport due to injury, the birth of her daughter, and then marriage to Reddit co-founder Alexis Ohanian.
Williams won this year's event while in the early weeks of pregnancy and is hoping to surpass Margaret Court's record of 24 Grand Slam titles. But Tiley said Serena could come to try and equal Margaret's record by winning her seventh Australian Open.
"We'd be pretty excited about the possibility (of her coming)", he added. She has taken time off the tour, raising questions over whether the American would attempt to defend her title next month. At that point, Williams was practicing and Mouratoglou would soon join her in Florida.
Tiley described the Australian Open, which will be held from January 15-28, as a "family-friendly event".