NAT Fraser's latest appeal against his murder conviction will be held in April.
A hearing will take place on April 9 when Fraser's defence team will argue his case.
The former fruit and veg seller was jailed for 17 years in May after being found guilty for a second time of plotting his wife Arlene's murder in 1998.
He was originally convicted of murder in 2003 following a trial at the High Court in Edinburgh.
A lengthy appeal process ultimately led to a successful appeal to the UK Supreme Court which ordered a retrial.
Fraser's legal team are expected to argue that he suffered a miscarriage of justice at his second trial after a witness revealed he had been in prison.
At the Court of Criminal Appeal in Edinburgh on Wednesday, both Crown and defence lawyers confirmed they had completed their preparations.
Judge Lord Menzies set April 9 as the date for the next hearing.
Fraser has always pleaded his innocence in the disappearance of his wife, whose body has never been found.
She was last seen on April 28, 1998, waving her two children off to school.