Seattle's NBA Comeback was supposed to be the easy half of the league's expansion story. The city has a state-of-the-art arena, a championship history, and fans who never stopped mourning the SuperSonics' departure — and the commissioner himself once said Seattle could host games within weeks. Yet as the NBA's expansion process enters its final stretch, the Emerald City has become the uncertain side of the deal.

On the opening day of the 2026-27 season, Commissioner Adam Silver said expansion talks are "ongoing about Las Vegas and Seattle right now," according to the Sports Business Journal's account of his appearance on the Pat McAfee Show. The trade publication reported that he added the league is "looking closely" at both markets, while also mentioning Mexico City as a possibility further down the road. The timing was pointed: the season tipped off with the defending champion Knicks raising their first banner in more than five decades, and the league's next decade is being drawn up right now.

The Vegas bidding war

Las Vegas is the engine of the whole process. Four ownership groups have qualified for the final rounds of bidding there and are working with the league's investment banking adviser, PJT Partners, on their next offers, the commissioner said. Reporting on the process puts the expected expansion fee at roughly ten billion dollars, with the winning group likely to spend another two to three billion dollars on a new arena.

The arena question is still open. Silver said a discussion led by Patrick Dumont examined the options, from significant upgrades to the existing T-Mobile Arena to building what he called a modern entertainment palace for year-round activity, as covered by talkSPORT. With that many qualified bidders pushing against each other, a decision on the winning Las Vegas group could come within weeks, according to ESPN's reporting on the process.

Seattle's shaky lock

Seattle's NBA Comeback looks very different from the inside of the boardroom. RealGM reported this month that the league no longer considers the city a lock, with Mexico City floated as a possible alternative for the second slot. The problem is not the market — it is the money. Two groups are known to be bidding in Seattle, led by Kraken owner Samantha Holloway's group, which sources value at around six billion dollars, according to a detailed rundown of where expansion stands. The league reportedly considers those offers far below what the Vegas bidding war is producing, and it wants the Seattle price closer to the Vegas number.

History is on the league's side in that argument. RealGM's look at past expansions found that whenever the NBA has added multiple teams at once, every new franchise paid an identical fee: the four teams awarded in April 1987 each paid thirty-two and a half million dollars, and the two Canadian teams added in 1995 each paid one hundred twenty-five million dollars. The last expansion, the Charlotte Bobcats in 2004, cost three hundred million dollars as a single team.

That is what makes the current gap so awkward for Seattle. The commissioner said in September that Climate Pledge Arena could be game-ready in weeks — "if we were opening in five weeks, we could be ready in Seattle" — yet arena readiness is no longer the deciding factor. The league has even signaled interest in a Mexico City group that approached it with a plan for an expansion team and a new arena district, a classic piece of negotiating leverage.

The math the owners are counting on

The pressure to add two teams, not one, is financial. ESPN reported that teams are budgeting for expansion-fee payouts from two new franchises, with each of the current thirty owners expecting a distribution of five hundred million to six hundred million dollars; one team is planning around five hundred thirty-three million. A single addition would leave every owner hundreds of millions short of expectations. Stopping at thirty-one teams would also create a scheduling headache for the NBA Cup, which was not around the last time the league had an odd number of franchises.

Silver has said he wants a vote on expansion before the end of the calendar year, according to reporting on the process. Meanwhile the league is pushing on a second front across the Atlantic: deputy commissioner Mark Tatum said the NBA is close to finalizing agreements with clubs for the first phase of its own European league and plans to announce those teams soon, even after Europe's biggest clubs declined an offer to partner. The expansion era is not just American — it is global.

What it means for Seattle fans

For fans in the Pacific Northwest, the wait has now stretched to eighteen years since the Sonics left for Oklahoma City in 2008. The cruelest part is how close the city looks on paper: a modern arena that already hosts the WNBA's Storm and NCAA tournament games, an ownership group with a controlling stake in the building, and a commissioner on record saying the city is ready.

The lesson of this round is that readiness is not the currency that matters most — bidding pressure is. Seattle's best hope may be the Vegas losers: groups that miss out on the desert franchise could pivot to the Emerald City, which would push the price up and give the league the paired expansion it wants. Expansion teams can win fast, too — Golden State's second-season squad just reached the WNBA Finals, and the broader boom in women's sports shows how quickly a new market can catch fire, as the WNBA's record-breaking season demonstrated. The Sonics' return is still possible. It is just no longer the formality it once seemed.