I suppose there will be raid groups and sub groups for AvA leaders to keep track of their soldiers. They should make it so Commanders can divide their raid into smaller groups or even select individual players and place waypoints for them without having to open the map. It would be like playing a strategy game, except players of course can choose whether to obey. It would ease up commanding a larger group and there would be less commotion on vent/tspeak.
P.S. Note that when I say Commander I don't necessarily mean a Commander title like in GW2, it could be just a guy who rallies a lot of people at his call or a guild leader.
Edit: Before you say "But that would force Commanders to constantly look at their interface", well yes, that's what they do anyway - focus on the broader picture, constantly open and close the map, think ahead so we don't have to etc. Not everyone can or should do that type of job.