With regard to wounds, I know that jorbtar have stated their desire to have degree of permanence to HHP damage, but the currently heavy-handed (and in development, certainly) wound system feels to me as though it would be too punishing in the long term. My thought was that perhaps all wounds could ultimately be healed, but any wounds above a certain damage value (10? Unsure) would leave behind a percentage of their damage as a permanent "scarring" wound, either as reduced hp or a direct penalty to constitution.
As well, with the idea that HHP will be permanently reduced over the course of a character's lifespan, the max hp value no longer seems meaningful as after accruing one permanent wound it's just a number that you can never use again. Just a thought.