What are a few minor glyphs that you would like to see in game, that would only be used for cosmetics or effects that would not be useful in combat.
The glyphs could be used to give cosmetics that would make the class look like on of the subclasses, like a glyph that made rogue abilities look a bit more like a demon hunter's abilities, so that you could look like a demon hunter but still be playing a rogue.
So what would you want to see? I hope I'm not being too confusing. If I am, let me know.