Fans of the soap are already aware that the Yusef storyline will reach a climax at Christmas, and more rumours have emerged today over how the scheming doctor's behaviour will get worse in forthcoming episodes.
According to the Daily Star, Yusef (Ace Bhatti) will manipulate Zainab by taking her young son Kamil away from her - warning that she will not see him again unless she follows his wishes.
The newspaper also claims that Yusef will try to murder Zainab's ex-husband Masood Ahmed (Nitin Ganatra) in a dramatic showdown at Christmas. The plot reaches its conclusion as Albert Square's B&B goes up in flames, which soon leaves Yusef and Tamwar Masood (Himesh Patel) trapped inside.
An EastEnders source told the publication: "Yusef is seriously unhinged. He really is Doctor Evil and probably the worst villain we have had on the Square. There is no limit to what he is capable of.
"Zainab has been under his spell for months and it's only going to get worse. Christmas will turn into a nightmare for her."
Yusef is also expected to become increasingly violent towards Zainab in upcoming scenes, as Nina Wadia - who plays the mum-of-four - revealed in a recent interview.
Wadia said earlier this month: "I've filmed some quite horrific scenes where Yusef gets violent towards Zainab. I don't like all of that to be honest, I have to be so on the ball when filming it. But Yusef pushes everyone to the limit, and he could potentially hurt anyone."
Read more news and rumours about the future of EastEnders' Yusef storyline:-
> EastEnders' December scripts are jaw-droppers, says Nina Wadia
> EastEnders' Masoods 'at centre of shock fire'
> EastEnders' Masoods should reunite, says Nina Wadia
> EastEnders' Nina Wadia 'emotionally drained' by Yusef plot
> EastEnders character to be disfigured in Christmas fire?
> Read more EastEnders spoilers and news
Watch Zainab Masood's EastEnders character trail below: