The most recent legal development in Syed's battle for a new day in court occurred Monday, when prosecutors asked Maryland's highest court to reverse a ruling that would have granted Syed a new trial.
The four-hour doc, directed by the Oscar-nominated Amy Berg, is set to debut on HBO in the USA and on Sky Atlantic in the UK.
Syed was jailed in 1999 for the murder of ex-girlfriend Hae Min Lee and has been serving a life sentence ever since.
In a statement, Sky said the series will present new discoveries and "ground-breaking revelations that challenge the state's case".
Featured in the docuseries are interviews with Syed; the defense team; Syed's family, friends and former teachers; and members of City of Baltimore law enforcement.
Welch vacated Adnan Syed's conviction and granted him a new trial after new evidence challenged the reliability of cell phone data linking Syed to the crime scene, and a long-awaited alibi witness finally had her day in court. Nick Cave is set to provide original music. It will be exec-produced by Henrietta Conrad and Jemima Khan for Instinct Productions and Eric Fellner, Tim Bevan and Andrew Stearn for Working Title TV.
However, work has continued in Syed's pursuit of a new trial, and he has continued to protest his innocence throughout the last two decades. "The hugely talented Amy Berg has unprecedented access to those closest to the investigation, which is sure to make unmissable viewing".