Can there be a Light infused Vex and Cabal class as well to round things out? Since these fallen subclasses are sort of like mirrors to the Hunter subclasses then the Vex could be inspired by Warlocks and Cabal by Titans. Maybe Osiris learns how to reprogram a group of Vex and replace the Darkness in them with consciousness and light, creating a new race/class of Reborn Vex. There could be a Solar subclass that was a mix of Sunsinger and Hobgoblin abilities, another that was a mix of Voidwalkers and Minotaurs, and then a Stormcaller/Harpy combo. And maybe a faction of Cabal goes AWOL and stops fighting for the Empire after the events of Taken King, the Rebel Cabal could start manifesting light powers in their own attempt to survive the Darkness without the aid of their army. The supers would go something like a Phalanx/Defender hybrid for Void, a Colossus/Sunbreaker combo for Solar, and a Psion/Striker for the arc.