So, in short, we just want more and better of everything?
A short wish list of mage related gear?
-more variety (not just re-coloring of the same set of robes)
-better hats (I'm thinking maybe add another kind of headgear, like circlets, headbands, or maybe even masks)
-perhaps show gloves and boots (if possible; maybe also make the mage specific footwear and gloves look different rather than just recolored light armor stuff?)
-personally I wouldn't mind seeing some Dalish Elf specific designs...I'd have said Dwarf specific too but they don't really do the robes thing, being non-magi and all

I'm just saying I'd assume that since the Dalish travel they'd have different textures and designs. We already see some differences between Elf magi robes and Human robes; I'd like to see more (and for both Dwarf and Dalish I'd like to see different armor designs, considering they're different cultures)
I could go on and on and list more stuff I'd like to see, but I guess it just boils down to trade-offs. It's obvious that it was never their focus to push the envelope graphically or artistically, and I think that paid off with the better dialogue and more involving story and decision branches. The hope is that now that we've all seen how successful and popular Dragon Age is, and now that BioWare has gotten a game in the series out, the next expansion or the sequel will benefit with a (relative to DAO) higher focus on some artistic pieces such as robes, cloth, some animation here or there, and headgear. Hopefully!