The first pictures from the set of season 11 of Criminal Minds were recently posted on the official Twitter account of the CBS procedural's "Set_Report."

Showrunner Dishes About Jennifer Love Hewitt's Decision To Leave   

Via this Twitter account the showrunners keep fans well apprised of the smallest developments in the production of the show. The "onstage" images show the dark corridors and elevator spaces of the BAU offices, reminding fans that the "BAU won't be empty for long."

Most recently, the premiere date for season 11 was revealed, and we also know that the writers of the show are busy hashing out the plot for the next chapter.

Could Ella Greenaway Return For Season 11?

In an interview, showrunner Erica Messer had teased the possibility of new guest stars and even bringing back old characters in season 11, while revealing that the writers begin work on the next chapter on June 1.

"Our season in the writers' room will begin June 1, so that's our work for the beginning of season 11," she said. "We have had a revolving door, and sometimes there might be fun in [bringing back someone] who's come in that door and say, 'Hey, do you want to come back and play for a little bit?' Which would be amazing because it's always a fun thing when shows get to bring people back. It takes a lot of us getting together and talking about what we've seen and what we need. It feels like there's nothing missing on our team. We've got such a great group. Our core group that everyone's known and loved for so many years cover all of our bases, so anything on top of it is like a bonus. This might be a good opportunity to bring in a fun guest star for a while and maybe shake it up a little bit."

Season 11 will premiere on September 30.

The finale of Criminal Minds aired on May 6.

Watch the preview: