Turbine should add an icon that floats over people's heads when they are recalling or finishing out. Sometimes when people are standing around, it's hard to tell if they're waiting to recall out, or typing in stuff about whether or not to do the optionals, etc., or just looking around to see if there's more stuff to kill (like in Kobold Assault). Having the icon would eliminate confusion, and decrease the chance that only a few people are still in when monsters come, etc.