More likely options, in my book, are that Rojas went back undercover, Rojas left Intelligence and/or CPD, or Rojas was fired.
At this point, I think too much time has passed without a mention for Chicago P.D. to reveal that she’d been killed off over hiatus.
It would still be weird that P.D. didn’t mention her for months of Season 8 if the show goes with one of those three options, but we can’t just pretend she was never part of the unit, right?
Lisseth Chavez landed a new TV show that films up in Vancouver, so it does make sense that she didn’t show back up on Chicago P.D. even for a quick farewell, but I’ve just been dying to know the in-show reason why Rojas is gone.