Just as one person left Detective Rollins' life on Law & Order: SVU, another one is coming back in.

The new season will feature the return of Rollins' sister (Lindsay Pulsipher) — but she's bringing a new face with her. "We'll see her sister and meet her mother," executive producer Warren Leight tells TVGuide.com. "Even if their intent is to be supportive, and I'm not even sure it is, her family showing up is not a great thing for her — nothing good comes from seeing her sister or her mother."

As to why they're coming around, could Rollins be expecting a baby just like Kelli Giddish is in real life? "By the end of the premiere you'll know part of the answer to that question," Leight teases.

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Regardless, Rollins is dealing with tons of change this season after the exit of her partner - and part-time love interest - Detective Amaro (Danny Pino). "This guy was a rock in the department and he was there emotionally for Benson and Rollins and, at times, physically for Rollins," Leight says. "So they're both missing him. We don't have people moaning about it, but you sense that it's changed the rhythm."

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