Bonner played Steph Scully on the soap for 11 years, before her character was jailed for six years after she killed Ringo Brown in a motorbike accident in 2010.
She told Inside Soap: "I do believe we'll revisit Steph one day.
"I'd love to see how prison has changed her - and whether she forgives Paul Robinson for where she ended up!"
Bonner added that she at times found playing Steph tough due to the amount of challenges in her life, including breast cancer and post-natal depression storylines.
She said: "I think the writers preferred to see Steph distressed. Her exit storyline was gruelling, but we approached it with sincerity and gave her such a powerful farewell.
"It was time for me to leave. I needed a rest and to explore who I am. I'm so grateful that I was brave enough to make the leap into the unknown."
Carla Bonner recently published a dating book for men titled Hook, Line and Sink Her.