Now everyone who lost their bending will have to be contacted so they can get it restored by Korra. It'll be quite a day and quite a line-up. I wonder if a non-bender will try to sneak in and try to get a bending ability. Maybe someone will, then Korra will discover that there's nothing to unlock and the poor guy will be escorted out thinking... "Hey, I tried!" That'll be the cue for any other non-bender in the line to leave quietly. Now if a non-bender actually does manage to get an ability, that would be something.