Was bored. Thought these were cool perk ideas.
For killer:
Cleave: Any basic or special attack, on a successful hit, will cause an eruption of the Entity's claws up from the ground behind the target. This effect goes through walls. The eruption of the claws can damage survivors but not down them. The claws linger for 10 seconds, Hindering survivors that walk through the claw field.
Ghostly Gambit: Press the Interact button to leave your body behind, becoming a visible specter. For 3 seconds you move 20% faster, and retain all normal functions except for the ability to pick up survivors. After those 3 seconds, you are forced to return to your body with a 3 second fatigue. 60 second cooldown.
Encroaching Eclipse: For each generator completed, your terror radius gets 7 meters shorter and all lights in the map cover 10% less distance. At 5 generators completed, you are permanently undetectable and gain 10% movement speed when in shaded areas.