The existing train at ATL will probably be extended to the new international terminal and concourse. However, there are other proposals, including the South Passenger Complex and CONRAC. Connecting the existing train to these places would make the waits much longer. How should the people at ATL handle this? Note that I do NOT mean to create this as a poll, but to simply discuss solutions.
I personally think that there should be two new trains, the Blue Line and the Green Line. The current train should be named the Red Line.
The Blue Line should be an underground shuttle from the main terminal to the South Passenger Complex.
The Green Line should be an above-ground monorail from the main terminal to CONRAC.