I don't think Montreal's likely, either, but I think I'd be a little surprised if the owners let a new owner move a team to Nashville that they would put an expansion franchise right back in Tampa given the stadium situation, which I might assume would not be any better.
I used to believe Charlotte didn't have much of a chance because of how spread out the metro is, which might affect attendance at 81 games, but now that the vast majority of money made by teams comes outside of attendance, a sub-30,000-seat house might be a possibility for them. Now I'm wondering whether Charlotte is not going to get a franchise just because they are less than a four-hour drive from Atlanta, which is what Nashville also is. Maybe they would put a team in Durham? Believe it or not they are now a top-25 DMA, and they're six hours from Atlanta, which might help their case.
And then there's Orlando. The up side is that they are, I **** you not, a #15 DMA, just one spot behind Detroit, and growing. The down side is, it's Orlando.
No, in all seriousness, Orlando might end up being the next best solution for Baseball if Tampa were to flee.