These are great ideas and I really hope Bethesda is considering all of these ideas for DLC or a werewolf revamp.
Beth WON'T do a werewolf revamp because that would put way too much emphasis on werewolves. Skyrim is about the dragonborn, not werewolves. As vsions himself explained not that long ago, focusing too much on a completely optional mechanic drags it into a spotlight it doesn't deserve, because it's not a central part of the game. It certainly was in Bloodmoon, but it isn't in Skyrim.
Beth shouldn't make a werewolf DLC. they should make something completely new that has a brand new element to it. I want something like Tribunal, not another expansion centered around daedra