It'd be good if they had a customization UI where you have all your spells + some extra (forms, etc) listed with several options you can select for each spell/form. All old GFX, additions to base visual effect that you can activate one-by-one, etc. There are lots of visuals already in game that could be quickly integrated into it and it would make people of same class and spec look different in fight. 3 glyphs max for ALL differences amongst all your visuals is just not enough.