A first look at the second season of The Ex-Wife has been released, and it looks like Jack is back, and all the dirtier for it. Here is the synopsis for this 4 episode season: 

"Three years after the dramatic conclusion of series one, Tasha now is hiding in Cyprus with her daughter Emily, while Jen has moved on and is preparing to walk down the aisle for a second time. Living under false identities, Tasha has started a new life for herself and Emily. However, Tasha is forced to abandon her fresh start when she learns that Jack has been released from prison early. Jack appears to be a changed man, grieving the death of his daughter and searching for redemption from a newly engaged Jen. With the shadow of the past haunting all three of them, attempts at moving on only bring them closer together, but who can each of them really trust, and can anyone truly change?"

No release date was specifically mentioned, but presumably the series will roll out first on Paramount+ UK and Ireland later this year.