Old flames are reportedly re-igniting in "Glee" Season 6, with the rekindling of romances between fan cast favorites Quinn and Puck and Brittany and Santana. Spoilers ahead!

According to Hollywood Life, Quinn (Dianna Agron) and Puck (Mark Salling) may be reuniting -- after all, the couple had baby together in Season One, so why not bring it back to the beginning?

Salling, who earlier confirmed that it will be the last season of "Glee," told US Weekly that "he is excited and at the same time a little sad to record scenes for the sixth and final season of Glee."

At the end of Season 5, there were a lot of unsolved situations, with Sam (Chord Overstreet) heading back to McKinley, Rachel (Lea Michele) off to Los Angeles and vocal powerhouse Mercedes (Amber Riley) embarking on a tour.

There's also speculation that Sam and Rachel could make a relationship work as well, but fans will have to stay tuned for that!

"Glee" writer and producer Brad Falchuk reportedly said, "I think there's something nice about those two, but not yet," during Season 5.

To "Glee" fans' delight, wedding bells might be ringing for Brittany (Heather Morris) and Santana (Naya Rivera) as well.

"On Sept. 30, Naya posted a cute pic with Heather, and wrote 'Brit and San,' so we know they're shooting together, and we totally love it," Hollywood Life adds. "Following their vacation together in the end of season five, and Brittany showing up to see her (even though she was MIA) on the finale, we know they've definitely upped the seriousness of their relationship."

On Oct. 6, following September's Tweet, Rivera further teased Gleeks' curiosity when she tweeted something that insinuated that there will be nuptials for the couple, otherwise dubbed as "Brittana."

Season 6 of the FOX hit TV show, "Glee" will debut in 2015.