Talents, surfaces, damage types, maybe even make Shackles of Pain/Decaying Touch/Blind not so hardcoded, extend the scripting engine, allow additions to Base.charScript and other script files without having to completely override it so as to enable compatibility between mods, etc., etc. would all be amazing additions to modders.
Please don't make me cry. No matter how many people speak about this, sometimes I think our words fall on deaf ears.
