The NBA's board of governors has approved a plan to allow the league to explore potential team expansion to Seattle and Las Vegas. The two cities have long been seen as the front-runners to land franchises. However, expansion isn't a done deal. Investment bank PJT Partners has been brought on as a strategic adviser to evaluate prospective markets, ownership groups, arena infrastructure, and the broader economic implications of expansion. The announcement could fuel hope for a basketball revival in Las Vegas, which has become a major part of the NBA ecosystem even without a team. The expansion fee is expected to be at least $6 billion and the timeline for adding the clubs is uncertain.