It looks like Naya Rivera’s headed back to school…

Even though she graduated from William McKinley High School, the 25-year-old half-Puerto Rican singer/actress will be returning to Fox’s Glee next season.

Following the hit musical dramedy’s last season, which saw several of the show’s seniors graduate, series co-creator Ryan Murphy extended an open invitation to all 15 regulars, including Rivera, to return for Season 4. And, it looks like virtually all accepted the offer and are set to return, although not everyone will be in every episode.

Along with Rivera, other returning Glee stars include Lea Michele, Cory Monteith, Matthew Morrison, Jane Lynch, Chris Colfer, Kevin McHale, Darren Criss, Amber Riley, Jenna Ushkowitz, Jayma Mays, Dianna Agron, Mark Salling, Harry Shum Jr. and Heather Morris.

Each actor’s workload will vary as the show works to accommodate the large cast and make room for new characters, including American Idol runner-up Jessica Sanchez. Glee has already booked Kate Hudson and Sarah Jessica Parker for multi-episode arcs.

In addition to storylines reasons, some cast members may have reduced presence on the show as they pursue other projects, including features, theater and music.