This might be heartbreaking for some fans but it could be possiblity: season 11 of Criminal Minds being J.J.'s (A.J. Cook) last.

Could Ella Greenaway Return For Season 11?  

A recent Entertaiment Weekly piece put up a list of things they wished to see happen in season 11 of the CBS procedural. When the question of somone dying in this chapter came up, the entertainment website suggested J.J. might make for a good candidate. The report speculates that season 11 would be apt for A.J. Cook to exit as she is going to be a new mother. The actress will actually be missing the first few episodes of the show on account of her pregnancy and delivery. Secondly, it is being speculated that Jennifer Love Hewitt, who played Kate Callahan in season 10 will be returning for season 12. According to EW, this might soften the blow of J.J.'s exit.

In fact in a previous interview Criminal Minds showrunner Erica Messer suggested that new actress Aisha Tyler, was also meant to fill in for Cook's absence in the first few episodes. What if Tyler's role snowballs into a more substantial one and is being firmed up to take Cook's place in the long run.

Showrunner 'Absolutely Wants' Jane Lynch Back In Season 11 

"We'd love to have her come play as often as possible, because she's amazing and she fit right in with the cast," Messser said of Tyler.

Season 11 will premiere on Sept. 30 on CBS.

Watch the preview for the finale of season 10: