TheLegend
Hardly Deactivated
If any league expands beyond 32 teams, I think the NFL would be the first. And they won't do it until after they go to 18 games. The two main drivers of this would be gambling and Amazon/Apple willing to pay for the streaming rights. Locations of the teams won't be too important, just additional teams playing more games. Maybe there's more early Sunday morning games, or Tuesday/Wednesday night games. This is pretty far into the future, 10 years at least and probably will be wrong.
Denver is currently up for sale..... $4 Billion.
I couldn't imagine what an expansion fee would be.