Tanya (played by Jo Joyner) left Albert Square in 2013, returning briefly in February 2015 for the show's 30th anniversary celebrations.
In last night's episode of EastEnders, Lauren Branning (Jacqueline Jossa) made frequent mention of her mother.
Lauren lamented the fact her mother had not been able to see her baby grandson Louie because she lives far away.
She told Jane Beale (Laurie Brett) and Stacey Fowler (Lacey Turner) that Tanya had only seen Louie through video chats.
EastEnders fans have predicted Tanya Branning will be making an imminent return
EastEnders: Lauren Branning made frequent mention of Tanya last night
As soon as it was aired, the conversation sparked an online freeze with viewers questioning whether the mother-of-three would be back in Walford soon.
One social media user asked: “Is that some sort of hint Tanya will be coming back?”
"Heavy mention of Tanya there, I wonder if she's coming back?! #EastEnders," another speculated.
EastEnders: Tanya's ex-husband Max Branning is now back on the show
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A third remarked: “Too much mention of Tanya. Kinda hinting she’ll be popping up in the coming weeks.”
Tanya's ex Max Branning (Jake Wood) also made his comeback at Christmas, fuelling speculation even further.
"Namedrop…Tanya is going to pop up on easties soon then…maybe to help stop Max in his evil scheme #EastEnders," one viewer predicted.
EastEnders continues tomorrow night at 7.30pm on BBC One.