Lloyd Birkby, 26, is charged with the murder of Levi Ogden from Elland, in November last year.
Miss Ogden, also 26, died following an incident during a night out in Halifax town centre.
Birkby, of Langdale Street, Elland was expected to enter a plea to the charge of murder during a hearing at Bradford Crown Court on Monday, but the prosecution explained how they are still waiting on a report from the neuro-pathologist.
A further plea and trial preparation will also take place before the trial date, but a date has yet to be fixed.
Birkby was remanded in custody.