So, from a person who already saw the season finale, I picked up a few informations about Calzona:
Apparently, there is just one scene with Callie and it involves Arizona and Sofia.
"Callie has only one scene of dialogue and it's a bit of a doozy."
There is a few scenes with Arizona.
"Very little JCap. She has a few quick scenes (one with Bailey, one with Bailey / Jackson... one with Callie which is memorable.) "
The part about Calzona scenes, that person said this:
"I don't really want to give anything away about that. Early on Arizona mentions that Sofia keeps asking why mommy (Callie) is so sad. The Calzona scene also includes Sofia and I would call it the big surprise of the episode, although it isn't the actual last scene. It definitely addresses Callie's status and where she stands with Arizona."