"Serial" returning for two more seasons, beginning this fall

"Serial" junkies, get out your sleuthing kits again -- the wildly popular podcast is coming back with two new series.

In an email sent to "Serial" newsletter subscribers on Wednesday, producers said they hope to launch the second season this fall and season 3 next spring.

"We are hard at work reporting not one, but two distinct new stories," they say.

Planning for a second season was a slam dunk after a very successful launch in which Sarah Koenig and Julie Snyder investigated the true-crime case of Adnan Syed, a young man imprisoned for life for killing an ex-girlfriend.

Syed, who has maintained his innocence in the strangulation of Hae Min Lee in 1999 was granted a request for review by Maryland's Court of Special Appeals after "Serial" dissected the evidence against him last year. In March, Syed's case was remanded to a lower court so testimony from a new alibi witness can be added to his request for a new trial.