The Weatherfield superbitch is currently behind bars for murdering her boyfriend Charlie Stubbs. However, Ford told the Daily Star that "lucky" Tracy will be released on Christmas Eve.
"She's a very lucky person," she explained. "Basically it turns out that the key forensic expert in her murder trial was a fraud and has destroyed all the documents connected with her case.
"It means that there will be a re-trial and while the date is set she's been let out on bail."
Speaking about her return, she continued: "The Street has been through a lot but things are about to get even worse. There's no Christmas spirit as far as Tracy is concerned. She's back and she means business.
"I'd actually say that Tracy is harder than she’s ever been before," she said. "Prison has really made her toughen up. She's learnt a few new tricks, which can only mean trouble for everyone around her, especially Steve and Becky.
Ford, who returned to the soap briefly earlier this year, revealed that Tracy will be determined to get her daughter Amy back.
"In her mind a child should be with their mother, regardless of the fact she's been in prison and proved she’s a pretty nasty person," she said. "All she cares about is getting Amy back. As a mother myself I can understand that.
"It’s just the way she goes about it that’s all wrong. When it comes to Amy she won't back off."
> Ford: 'Tracy sent me round the bend'