jwhite4,

Hard to tell what demand will be like once it starts flying again, but BA used to promote one-way deals fairly vigorously because loads were typically very light in the eastbound direction. I can't see that changing. (The time difference works against you in that direction, so Concorde provides little utility and many paying customers prefer the subsonic options).

As well as the reduced mileage for one-way awards, there used to be relatively inexpensive package deals available with Concorde eastbound and subsonic coach or business westbound.

The eastbound flight I took was only 2/3 full, and I got to spend anout 20 minutes in the cockpit, which was cool.