Is Death of an Expert Witness coming back?

When Dr. Edwin Lorimer, a forensic scientist working at a private laboratory is found killed, Detective Superintendent Adam Dalgliesh is sent to investigate. Dalgliesh had been in the area a few months previously investigating the murder of a young woman found in an abandoned car. There are several suspects. When one of the suspects is also murdered, Dalgliesh learns a key piece of information..