The actor's alter ego Dan Spencer is currently in a relationship with Kerry Wyatt, but fans have already seen a rocky road for the pair.
Dan's new storyline is expected to see him struggle to keep Kerry and Ali, the mother of his children, both happy.
Fox told Inside Soap: "There's a big plot coming up which involves Dan, Kerry, Ali and Ruby. It shows Dan's nice side, but could potentially cause problems with Kerry.
"We start shooting soon - there's lots of comic potential, so I think the viewers will love it. There are choices to be made, but I just hope Dan and Kerry will still be together by the end of it."
Laura Norton, who plays Kerry, added: "There are a few rocky moments for Dan and Kerry coming up, but there's some comedy when Declan sells his properties and Kerry tries to sabotage the sales by making up stories about ghosts!
"I'm also filming some scenes with Denise Black, who plays baby Kyle's adoptive gran. Kerry and Amy aren't talking, but perhaps there'll be some kind of resolution in their relationship."
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