All the good markets are gone. Vegas TV market is 40th, below Milwaukee, the lowest current MLB market. They won't have the same fanbase for an 81 game schedule as they do for the 10 Raiders games or 40 NHL games in a 1/3 smaller arena. This was pure and simple a scam for billionaires and bribed politicians to steal a half billion from taxpayers.
Nashville (27) and possibly Charlotte (21) are the final markets anyone wants, and both will either be pawned off for a billion plus expansion fee, with Baltimore possibly fleeing their dead metropolis for Nashville.
Portland (22) is one of the few cities to repeatedly say go f*** yourself to billionaires looking for welfare handouts. Canada doesn't play the welfare game with billionaires for free stadiums, so Montreal's TV Corp will have to build their own stadium.
Either the territory is already controlled by another team, or nobody wants The MLB in Orlando (17), Sacramento (20), Raleigh-Durham (23), Indianapolis (25), Salt Lake City (29), San Antonio (31), Columbus (32), Hartford (34), Austin (35), Greenville-Spartanburg (37) and West Palm Beach (39).
There certainly are not any "Brooklyn Dodgers" scenarios, save if baseball expanded to Tokyo and perhaps a couple more Japanese cities, and possibly Mexico City might be worth something despite the lower per capita income.