I would definitely rather see a new villain in The Rookie season 8 who is part of a main character’s backstory. While it wouldn’t make sense for them to know Bailey Nune (Jenna Dewan) since her ex-husband Jason Wyler (Steve Kazee) already had a lengthy arc, any of Nolan’s co-workers could be shocked by the return of a mysterious figure from their past. I enjoyed Celina Juarez’s (Lisseth Chavez) season 7 storylines as she’s smart and compassionate, and if she knew the villain character, this would be a great opportunity to give her more screentime.
Fans aren’t thrilled about seeing Monica again, and there are several Reddit threads about how Monica’s arc should end. Redditor @ReganLamborghini wrote:
“Her storyline didn’t really progress this season.”
Redditor @hbg84 agreed, “The whole storyline is overdone. It should’ve stopped at the end of season 6.”
Showrunner Alexi Hawley Shared His Thoughts About Monica’s The Rookie Season 8 Storyline

In an interview with TV Insider, Alexi Hawley, the creator and showrunner of the ABC drama, talked about how the main cast members will react to Monica Stevens in The Rookie season 8. He said:
“It was obviously a huge shock for them in that moment. I think when we come back in Season 8, they’ll probably have had time to process a bit. But yeah, no, I don’t see them as people who give up on wanting to put a bad person behind bars.”
Hawley continued that Monica’s immunity deal will make it tough for the LAPD officers to put her in jail. He said:
“I think it’s very difficult upfront for them to get any kind of approval to do anything officially.”
While it’s unclear how many episodes Monica will be in next season or if the others will take her down once and for all, I’m definitely hoping for a logical end to her arc.