The 28-year-old, who plays Walford superbitch Janine Butcher, announced her regular return to the show in 2008 for an initial year.
Speaking to DS in December, she said: "I'm back for a year at the moment. I don't know [about anything longer]. We'll see how it goes on both parts."
However, her ex-boyfriend Tony Truman, who is also the father of her four-year-old daughter Kiki, recently revealed that his former flame is to stay with EastEnders for at least the next three years.
He told Closer: "Charlie's just signed a three-year contract to keep playing Janine - she loves getting all the wicked storylines."
Of his contact with Brooks, Truman added: "We're still like bezzie mates, I love it when she visits me in Ibiza with Kiki - we have so much fun in the sun."
> Brooks returning to Walford for daughter