As of right now, there are no signs that Taylor Kinney is leaving Chicago Fire. The storylines at the end of season 12 set things up in a major way for him in season 13.
The show has also lost a major star from the series. Eamonn Walker has stepped down as a series regular after 12 seasons. The series won’t want another lead walk away so soon after, so there will be things going on behind the scenes to help encourage Kinney to stay if he was thinking about leaving.
With the storylines that are set up for season 13, Taylor Kinney better not be going anywhere!