All characters receive max hit dice plus their Constitution score at first level, rather than Constitution modifier.
Characters are allowed to swap out one feat category for another.
All characters receive three traits, rather than two. Still a maximum of one background trait.
Pathfinder method of skill point distribution will be used.
Berserkers may choose one extra skill group.
Age of Fallen Divinity uses a silver-based currency system, rather than gold based.
Pathfinder-style Combat Maneuver Defense must be overcome, rather than roll-offs.
Using True Sorcery magic system for the Arcanist.
More to come.