In an effort to cure my ignorant jackassery I have spent the last few hours reading the dev notes. I stopped after the bloats and I believe that unless there is something in the power goals, that I still have a couple of ideas that haven't been covered, or at least were only kind of glazed over in a general fashion.
Convalescent Care: Dwarfs with broken bones etc. take a long time to recover on their own. This could be helped by a new job assignment that goes beyond just recovering a broken dwarf and putting him in a bed and bringing him water and food. Setting broken bones, providing splints, bandages, antiseptic and etc to help fight against the new incoming infections and diseases. And to the contrary, if a dwarf with a broken bone does not recieve proper care, it may heal improperly, causing disfigurement and penalties to relevant skills.
Matriarchal or Patriarchal Monarchies: Let civs have the option of leaning towards having a female-dominant society or a male-dominant society, or just a normal society.
Spawnery: Advanced animal... whatevers were covered but I thought this deserved particular attention. Running out of fish or not being able to catch enough fish is a problem that is being addressed but it could be nice to create a building in which you specify exactly what kind of fish are grown.
Armed Cowards: I don't remember reading anything specific to this effect but if a dwarf encounters a hostile and the dwarf has a weapon, say like an axe, and the hostile is all alone, like a kobold or a goblin kidnapper, it may not be as prudent to run away as to just kill the interloper.
Retroactive Claiming: The Forbid on Death order is great for preventing dwarfs from charging headlong to their death whenever your military kills a single goblin during a siege. If items that are dropped maintain some kind of memory as to who they belonged to when they were dropped, then it may be reasonable to reclaim all such items that were dropped by killed hostile invaders when you turn on "Claim other death items" order.