The actress' initial claims of unlawful termination against Desperate Housewives creator Marc Cherry were dismissed last year (12) in Los Angeles Superior Court, and the case ended in a mistrial.
Her request for a retrial was rejected last August (12) and she was also denied the right to appeal by California's Supreme Court in November (12).
However, Sheridan is refusing to let the case drop, and on Monday (22Apr13), Los Angeles Superior Court judge Michael Stern set a new trial date for 2 December (13) after the star amended her complaint.
She is now only seeking damages for loss of wages and benefits. Sheridan's legal team originally wanted $6 million (£3.8 million) over claims her character, Edie Britt, was killed off because the actress complained to producers about an alleged altercation between herself and Cherry.