“Grey’s Anatomy” ends its current season in just a few days. Although it’s already been renewed by the network, could season 13 be the last for Shonda Rhimes’ hit series?

The good news of its renewal came midway through season 12. Yet it would appear that not everyone on the cast would be back, the Inquisitr wrote. The fate of the series could hinge on current negotiations as the contracts of its major stars end in June, Entertainment Weekly revealed.

The cast members negotiated their current contracts in 2014 prior to the departure of Patrick Dempsey aka McDreamy, EW recalled. Despite concerns about how the show would fare after his departure, the series experienced a “ratings renaissance.” Actress Ellen Pompeo even said that the show’s done well without him.

Hence, given the stellar performance of season 12, it’s likely that agents representing most of the major cast members might insist on higher salaries, the publication remarked. ABC has yet to comment on contract negotiations with the cast of “Grey’s Anatomy.”

Improved ratings of “Grey’s Anatomy” is due to an increase among younger viewers, particularly women under 35, who have discovered the series on multiple platforms, Variety reported.

Sources earlier revealed the contracts of its major cast are already up. Hence, the chances that one of its lead characters leaving the series is possible. Actors Justin Chambers and Kevin McKidd earlier revealed their intention to stay with the show following the news of its renewal. However, the decision of other cast members like Sara Ramirez, Chandra Wilson, and James Pickens Jr. were unknown then.

The guessing game might be over for fans of Sara Ramirez or Dr. Callie Torres on “Grey’s Anatomy.” Her Twitter message last April could be a giveaway of her character’s future.

Her tweet could be in celebration of her final workday for season 12, TV Line surmised. However, there could be two other reasons behind it. First, the publication noted the expiration of her contract with “Grey’s Anatomy” in June. Hence, could it be a strategy to leverage negotiations in her favour? Second, it’s also possible she’s chosen to quit the show altogether. Regardless, fans had various reactions to her cryptic message.