Blue Bloods is returning, but not in the way that many hoped it would. CBS has greenlit a spinoff series tentatively titled Boston Blue, which follows Donnie Wahlberg’s Blue Bloods character, Danny Reagan, who moved from New York City to Boston and joined Boston PD following the events of the original show’s finale. So, the CBS police procedural lives on via a sequel series, which is exciting. However, one can’t help but wonder why the network chose to go down this route instead of renewing Blue Bloods for a fifteenth season (something many cast members and fans wanted).
According to Deadline, Danny will partner with Detective Lena Peters in the upcoming Blue Bloods offshoot. Lena is described as “the eldest daughter of a prominent law enforcement family,” but other than that, not much else is known about the new character or the spinoff as a whole. CBS plans on launching Boston Blue during the 2025–2026 TV season, though, meaning more information about the new series will come sooner rather than later. In the meantime, we can deliberate over why CBS is keeping the Blue Bloods universe alive via a spinoff rather than simply continuing the original show.

Boston Blue Is Likely More Cost Effective For CBS Than Blue Bloods Season 15
Blue Bloods’ High Budget Contributed To Its Cancelation

CBS’ reason for Blue Bloods’ divisive cancelation relates to the cost of making the police procedural series. Its budget was reportedly too high (despite the cast’s willingness to take pay cuts), and the network seemingly wasn’t willing to continue producing the pricey show. TV series usually get more expensive the longer they run, especially when they feature all-star casts like Blue Bloods. Cast and crew salaries and production costs tend to increase over time, and with Blue Bloods approaching 300 episodes, CBS decided it was time to start anew. As a result, Boston Blue was born.
The upcoming Blue Bloods spinoff will primarily feature a new cast (aside from Donnie Wahlberg, of course). CBS won’t have to pay the actors as much. Boston Blue’s setting will also likely cut costs for the network (depending on whether it will change the production location) as filming in New York City is expensive. So, it will assumingly be cheaper to produce than the original show, which is why Boston Blue is happening and Blue Bloods season 15 isn’t.

CBS Has Been Focusing On New Shows Over Old Ones
The Network Is Starting Anew

The confirmation of Blue Bloods’ sequel spinoff isn’t all that shocking given CBS’ recent decisions concerning its other established series. Instead of (or in addition to) continuing the original shows, CBS has been ordering several spinoffs as of late. Sheriff Country (an offshoot of Fire Country) will also debut during the 2025–2026 network TV season; The Neighborhood has two spinoffs in the works; the FBI universe is growing with FBI: CIA this year; CBS canceled NCIS: Hawai’i but ordered two spinoffs — NCIS: Origins and NCIS: Tony & Ziva; and so on.