Roxy's recent storylines have revolved around her troubled sister Ronnie Branning, who is due to depart screens next month as Samantha Womack has finished filming with the soap.
Pondering Roxy's future, Simons has now told Reveal magazine that she wants the businesswoman to face some challenges of her own.
Simons explained: "I'd like to see her experience some actual trauma of her own, instead of her sister's. It's nice as an actress to get your teeth into something.
"I've had a lot of good storylines but recently they're revolved around Ronnie, so, now she's gone, I'm looking forward to Roxy having a load of problems! I don't want happy endings."
Roxy is currently in a relationship with twisted Michael Moon, who is developing an obsession with Ronnie in the build-up to her departure.
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