I will say that I deeply *love* the idea of an injury based health system. Because this will allow me to abuse all sorts of healing like in PoE. Add healing bonuses from survival, items, chants and combine it with Veteran's Recovery and/or Ancient Memory, Moonwell and so on and you won't go down. Now that the health is gone and injuries only happen when you go down it's going to be much easier to break the game. Hahahaha!
I really hope that if this is actually the case, the devs will chalk the injury system up as a failure and go back to health / endurance split. The lack of granularity in the injury system seems like a big step backwards in strategic depth.
On topic: I don't really like Vancian casting in CRPGs, so I'm just fine with per-encounter abilites and a rest-based "mana" pool that can boost them.