Readers and the model agree: DAL says no.
Detroit gets a potential cornerstone LD in Thomas Harley and two firsts, which is a strong return, but giving up its 29-year-old captain and 1C in Dylan Larkin plus useful depth for a very expensive, long-term Harley contract and only distant picks is a major identity and cap-structure gamble for a bubble team that might still see itself as trying to win with Larkin in his prime.
Dallas is a Cup contender and would be extremely reluctant to trade a 24-year-old, locked-in, NMC top-pair LD in Harley plus two first-round picks for a 29-year-old Larkin and short-term depth, especially when Harley’s contract is structured as a franchise pillar; the price in futures and defensive core stability is too steep relative to the upgrade from Seguin/Harley to Larkin/Compher/Faulk.
Detroit Red Wings acquire 2027 Round 1 Draft Pick (DAL), 2029 Round 1 Draft Pick (DAL), Tyler Seguin, Sam Steel, Colin Blackwell, and Thomas Harley from Dallas Stars in exchange for Dylan Larkin, J.T. Compher, Mason Appleton, Justin Faulk (50% salary retained by Detroit), and a 2028 Round 2 Draft Pick (DET).
Detroit moves out its captain and top center Dylan Larkin plus middle-six depth (J.T. Compher, Mason Appleton) and a retained-salary rental on Justin Faulk to pivot toward a Harley-centric blue line core and long-term futures, taking on one year of expensive Tyler Seguin and expiring depth (Sam Steel, Colin Blackwell) while adding Thomas Harley on a massive seven-year, $10.587M AAV NMC deal and two future first-round picks (2027, 2029) to reset its timeline and asset base.
Dallas sacrifices a young, high-end, long-term-paid top-pair defenseman in Thomas Harley and two first-rounders to load up its center spine for a Cup push with Dylan Larkin (four more years at $8.7M with NTC) as a 1C/1A, plus J.T. Compher and Mason Appleton as versatile middle-six depth and Justin Faulk as a one-year, $3.25M cap-hit right-shot rental, effectively swapping long-term cap risk on Harley and Seguin for a win-now, forward-heavy configuration.
Value-wise this is a blockbuster built around Harley-for-Larkin with significant sweeteners both ways, but in realistic market terms Dallas is extremely unlikely to move a 24-year-old, cost-certain, NMC, $10.587M franchise defenseman plus two firsts for a 29-year-old center and short-term depth, while Detroit would only consider trading its captain if it were clearly exiting contention and fully comfortable with Harley’s massive long-term cap commitment. Overall, the structure is creative but the likelihood of both teams aligning on risk, identity (Dallas giving up its young #1 LD), and leadership changes is low.