The ITV soap will be broadcast live to celebrate its 50th anniversary in December, but the actress - who plays Audrey Roberts - confessed that she does not want to be a "wimp" and not feature in the episode.
"I'm not hoping I'll be in it actually," she told Digital Spy. "I don't want to be in it.
"But I haven't said I don't want to be in it and yet I know I want to be it because I don't want to be a wimp, an elderly wimp. But I'm not looking forward to it."
She added: "I will do the best I can if I am given anything to do."
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