Major League Baseball isn't necessarily close to expansion, but it is almost certainly going to happen at some point with at least one city being targeted for a franchise.
Per ESPN's Jeff Passan, a two-team expansion is seen as "an inevitability" with Nashville considered the "most favorable" candidate among East Coast cities.
Salt Lake City is also viewed as a potential expansion city for the league. Both Nashville and Salt Lake rank in the top 30 media markets in the United States.
The two primary reasons Passan cites as MLB's inevitable expansion is the money that the current clubs would receive in expansion fees and the rise of "viable" cities across the United States that appeal to owners and the league.