According to TV Line's founder and Editor-in-Chief, Michael Ausiello, GLEE, which is currently in middle of its 4th season, will "definitely be back for Season 5. No question."
Fox has not yet commented on the assertion - but it's no secret that Ausiello, with the aid of his many sources, scores major television scoops months prior to an official announcement.
"I've really wanted [GLEE] to go on, and I wanted to populate it with new people," Murphy told The Hollywood Reporter in October. "We did that this season, and thankfully those kids have popped. It's re-energized the show, and I think the actors are all much happier because nobody is having to work eight days a week and kill themselves."
Fans have been divided since the show's season four format change: the hit series currently follows The New Directions at McKinley High, former favorite regulars as they've moved across the country, as well as Rachel/Kurt's storyline in New York (an idea originally pitched as a spin-off.)
GLEE's ratings have seen a bit of a dropoff since it's first and second season, but has managed to deliver approximately 5 million viewers each week since moving to the coveted Thursday night lineup this season.
GLEE is a musical comedy about a group of eager and ambitious students who strive to outshine their singing competition to win Nationals while navigating the cruel halls of McKinley High. Since its debut, GLEE has become a bona fide cultural phenomenon, received prestigious honors including the Golden Globe and Peabody Award and singlehandedly made glee clubs cool again.
In addition to the regular cast, GLEE has featured guest appearances by a wide range of talented performers, including Kate Hudson, Sarah Jessica Parker, Gwyneth Paltrow (who won the 2011 Emmy Award for Outstanding Guest Actress in a Comedy Series), Carol Burnett, Kathy Griffin, Cheyenne Jackson, John Stamos, Britney Spears, Kristin Chenoweth, Idina Menzel, Jonathan Groff, Molly Shannon, Olivia Newton-John and Neil Patrick Harris, who won a 2010 Emmy Award for Outstanding Guest Actor in a Comedy Series for his work on the show.