Earlier this year, ex-couple Tanya (Jo Joyner) and Max (Jake Wood) were tipped to cheat on their respective partners Greg and Vanessa by embarking on a steamy affair, while their daughter Lauren was said to be heading for a fling with Ryan Malloy.
Kirkwood has now confirmed that both stories are going ahead in an interview with Inside Soap.
Teasing Max and Tanya's future, the Walford boss explained: "Over the coming months, we'll see a very hot and steamy affair between the ex-husband and wife. They're living on opposite sides of the Square and both are irresistibly drawn to each other.
"But there'll be a huge, life-changing shock for Tanya, which will have massive repercussions for the affair."
Lauren's (Jacqueline Jossa) new plot with Ryan, meanwhile, will come following her recent attempts to support the barman's half-sister Whitney Dean following her ordeal with sinister pimp Rob Grayson.
Kirkwood told the magazine: "In the last couple of months, we've seen Whitney get back on her feet and rehabilitate herself, mostly with the help of best friend Lauren. But now Lauren's set to have a torrid affair with Ryan, which will really shake things up.
"And added into the mix is evil Rob, who's set to return to the Square just at the point where Whitney is perhaps at her most vulnerable."
EastEnders is expected to air both storylines over the summer months.
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