Wow I do enjoy this list. Lots of exciting ideas. I would add:
a request that the UI and a lot of positions/settings be per character. My main and my bat alt would prefer to set up things very differently but instead the bat just deals with my mains set up b/c it seems to be saving to a universal local config file.
+1 on chat color options.
A sort order option for skills that puts favorites first/at top instead of relying on favorites tab - my mains favorite tab is SUPER long b/c I want to highlight alchemy recipes/meditation/callig relevant to my build but also access recall beginning, check moon phase, etc
An option to track non combat skills on xp bars.
An option to hide things (recipes in crafting, skills in xp tab) or at least push to bottom of list
