Seven Network bosses are keen on getting new mother Marais to return following Hugh Sheridan's recent move to Channel Ten and the departures of other key cast members, the Herald Sun claims.
Marais gave birth to Scout, her new daughter with fiancé and former Packed to the Rafters co-star James Stewart, last week.
The couple are now based in the United States, where Marais has been working on Starz drama Magic City. It was recently reported that Stewart would leave Packed to the Rafters as he helps to raise his new daughter.
Show chiefs were forced to deny reports last month suggesting that series stars Rebecca Gibney and Erik Thomson had asked to leave the show.
A Seven spokesperson confirmed that talks are under way with both Marais and Stewart in the hope that they will return for a number of episodes.
Packed to the Rafters's sixth season is due to start filming in September this year.