NBC has renewed three of Dick Wolf’s four Chicago dramas, flagship Chicago Fire as well as Chicago P.D. and Chicago Med. There is no decision yet on the newest entry in the franchise, freshman Chicago Justice. Also awaiting an official pickup is Wolf’s veteran Law & Order: SVU. I hear that is expected to happen once star Mariska Hargitay closes her deal.

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Over the past month of so, there had been some chatter that one of the newer Chicago-set shows –– Chicago Med or Chicago Justice — might not continue. As can be expected after 30 years in business, the financial relationship between Wolf and NBC is complex, and, with few exceptions, network drama series are not as lucrative as they used to be, with limited opportunities in the SVOD and cable off-network space. There have been no syndication sales yet for Chicago Fire, now in Season 5, or Chicago P.D, in Season 4.

That said, the mothership Chicago Fire is NBC’s second-highest-rated and most watched drama series behind breakout This Is Us, which has been renewed for two seasons, and all four Chicago shows are performing respectably; they are higher rated than NBC’s Shades of Blue, which was recently renewed for a third season. They still make money for NBC and are efficiently produced, with Wolf known for always delivering his shows on time and on budget.

Meanwhile, Law & Order: SVU is an institution and still doing well, 18 seasons in. “We don’t see a reason why SVU would go anywhere,” NBC Entertainment president Jennifer Salke told Deadline in January.