[Expanding player character... let's call them 'tags.']

This should at least be a thing in the character selection.
Then I could finally stop losing my sets among my way too many alts.

[Spear and Shield]

I have an idea to make staff/shield work with very little effort (hopefully).

Not because that's a combo everyone keeps requesting, I know it's not, BUT...
Take parts of the animations from Innocuous Strike and Sky Splitter, modify them to be done by 1 arm, add a few spear skins and VOILA, we got spear/shield.
I am a huge fan of the spear&shield combo in any game, I think it dates back to a little game that was also ahead of its time called Horizon: Tales of Istaria.

Either way, I think with relatively little effort we could turn a certain set combination into a whole new style.