To-Do List (ranked by rough priority order):
Arhosa - Updated/Revamped Eras, Fortes, Fusillades. Possibly re-examine Arcanist, Champion, Ecclesiast to give them class features. Finish writing the campaign adventures (Cities from the Sky, Whispers of War).
Spellsong - Potential rebuild to use a non-breakable (ie, not skill based) check
Osteomancy - Rebuild to use a new core magic idea, as spells points using PHB spells is significant overlap with Seedcasting
Ritual Magic - Plans are to give each of the races a feat chain like Claws of Influence, and to create a few more feats that stretch off of class features. And racial PrCs that pull from the racial feat chains heavily. Caeth - Martyr resistance fighter Hastro - Ritualist Influencer Niwl - Fog and poison Assassin Helfarch - Ritual warrior juggernaut
Necromantic - Finish the Vein of Poison, create feats and PrCs, rebuild Necromantic Companions to have roughly similar power levels
Threshold - Finish creating thresholds and the base class to give a solid foundation to the system
Fleshgrafting - Finish creating grafts and the base class to give a solid foundation to the system
Overall System Needs:
Rituals - More feats
Past, Present, and Future - Needs Monsters, Races, Magic Items (does have a large number of new weapons). More Feats and Prestige classes for Chronomancer & Echocaller. Update to use Seedcasting
Runecarving - Monsters, Magic Items
Necromantic - 1 Base class, Vein of Poison, Magic Items, Feats, Prestige Classes
Osteomancy - Feats, Magic Items, Monsters
Arx - Feats, Magic Items, Monsters
Spellsong - Magic Items, Monsters
Threshold - Everything
Fleshgrafting - Everything