As the plot thickens for "Glee" Season 6, the additives are getting juicier as well! A mix of new characters and the reunited cast of former "Glee" members is sure to get a warm welcome from longtime "Glee fans."

Fan favorite cheerleader Brittany, played by Heather Morris, who joined the "Glee" club will be reportedly returning to her alma mater. There's also the highly-anticipated return of "Glee" star, Lea Michele who had a photo of herself and Morris, which was posted on her Twitter account, in what appears to be a library.

On the 6th season, the question of whether or not the characters Brittany (Morris) and Santana (Naya Rivera) will be able to "rekindle their old flame" is yet to be determined, but according to insiders, there is reportedly a chance for the couple to be reunited.

"Glee" fans might also be happy to see the reported return of Season 5's Becca Tobin's Kitty Wilde. According to recent spoilers from MJsBigBlog, Kitty returns to "Glee" Season 6 in Episode 2 "Homecoming," according to Bustle. Many fans were left wondering what happened to Kitty after Glee's 100th episode, so hopefully they will get the closure they have been longing for.

Bustle also adds, "according to the popular spoiler blog, Kitty's the new head cheerleader at McKinley (naturally) and she's bitter about how Artie left things off with her after the 100th episode and graduation."

For the final season, members of the original cast will return -- in addition to Michele, Harris, Rivera, fans will see Chris Colfer, Darren Criss, Diana Agron, Dot-Marie Jones, Jane Lynch, Kevin McHale, Matthew Morrison, Chord Overstreet, Jenna Ushkowitz and Amber Riley.

Who are the new additions that Gleeks should be on the lookout for?

According to an "insider," there might just be an addition of five new characters, but fans will have to anxiously wait for further announcements from "Glee" directors. "Glee's" air date is slated for 2015.