It doesn’t seem very likely that Chicago P.D. will set Adelstein’s new character up as a villain so soon after Kelton’s own corrupt nature has been eliminated.
Especially considering how different Kelton was as an antagonist compared to Mykelti Williamson’s Denny Woods from Season 5.
Will Crawford be replacing Kelton only in a professional sense within the scope of the narrative, or will the temporary new Superintendent have a similarly corrupt background and approach to moving up in city government?