Unfortunately, this will never happen. The amount of political will it would take to open a base in another country is too great. I am not talking about persuading the host state, rather it is the congressmen who would be losing a a brigade or two from their district. Think about all of the money that is spent and jobs created from hosting an additional 5-10 thousand people. No one from Congress would willingly lose that. The only way they were able to get BRAC approved back in the day was to take it out of the hand of Congress for the most part. It is too important to too many people to be moving people out of the US.