The National Basketball Association has taken another significant step toward expansion, with Seattle and Las Vegas remaining the leading candidates to receive the league's first new franchises in more than two decades. Earlier this year, the NBA Board of Governors voted to formally begin exploring expansion into the two cities, authorizing a detailed review of potential ownership groups, arena facilities, financial considerations, and market conditions. Commissioner Adam Silver has indicated that the league expects to make a final decision before the end of 2026, although no expansion teams have been officially approved.

League Begins Formal Expansion Process

The Board of Governors' vote marked the first official step in what is expected to be a months-long evaluation process. The NBA has hired investment bank PJT Partners to assist in reviewing prospective ownership groups, arena infrastructure, and the economic impact of adding two new franchises.

League officials have emphasized that authorizing the exploration process does not guarantee expansion. Instead, it allows the NBA to conduct financial and operational assessments before owners vote on whether to add teams. Reports indicate that at least 23 of the league's 30 owners would need to approve expansion for the process to move forward.

Seattle Seeks Return of the SuperSonics

Seattle has long been viewed as the strongest candidate for an expansion franchise following the relocation of the SuperSonics to Oklahoma City in 2008. The city has continued to demonstrate strong support for professional basketball through preseason NBA games and the success of Climate Pledge Arena, which opened after a major renovation.

If Seattle is awarded a franchise, the team is widely expected to revive the historic SuperSonics name and identity. NBA officials have previously indicated that the franchise's history could be returned to Seattle if a new team joins the league.

Supporters argue that the city's established basketball culture, growing population, and modern arena make it well-positioned for an NBA return.

Las Vegas Strengthens Its Bid

Las Vegas has also emerged as a leading expansion market after becoming a major destination for professional sports over the past decade. The city already hosts the NBA Summer League and the NBA Cup's semifinal and championship games, while also supporting franchises in the NFL, NHL, and WNBA.

Interest from prospective owners continues to grow. This week, businessman Bill Foley, owner of the NHL's Vegas Golden Knights, formally announced his bid to secure an NBA expansion franchise, describing Las Vegas as ready to support another major professional team. Other investment groups have also expressed interest in submitting proposals as the NBA evaluates potential ownership options.

Financial Stakes Are Significant

Expansion is expected to generate substantial revenue for the NBA. Industry analysts estimate that each new franchise could command an expansion fee between $7 billion and $10 billion, making it one of the largest financial transactions in professional sports history.

Current team owners would share the expansion fees, although adding two franchises would also reduce each club's long-term share of league revenue. League officials are expected to weigh both the immediate financial benefits and the long-term impact on competitive balance before making a final decision.

Decision Expected Later This Year

Although expansion appears to be gaining momentum, the NBA has not finalized its plans. Commissioner Silver has reiterated that Seattle and Las Vegas remain the focus of the league's evaluation, with additional updates expected after ownership groups, arena proposals, and financial analyses are completed.

If approved, the expansion teams are widely expected to begin play during the 2028–29 NBA season, increasing the league from 30 to 32 franchises. Until a final vote is held, however, Seattle and Las Vegas remain prospective markets rather than confirmed NBA cities. As the review process continues, both cities are positioning themselves to secure what would become the league's first expansion franchises since the Charlotte Bobcats joined the NBA in 2004.