The actress bowed out last December, when her character Sarah Platt was seen leaving Weatherfield for a new life in Italy.
She later said she was hoping to be offered a part in a "meaty drama" after her departure.
However, she struggled to find work following her appearance in a Christmas panto with Johnny Briggs and is now open to the possibility of returning to the ITV1 soap.
She told New: "I'd even consider doing Celebrity Big Brother - I really love that show."
Producers are believed to have said she can make a "gradual return" if her career has not improved by the end of the year.
The 24-year-old added: "It's good to spread your wings but I am so glad I wasn't killed off!"
O'Brien has been dating Coronation Street co-star Ryan Thomas since 2004.