I think some of the UI elements are being unnecessarily tweaked in this image (if this is a concept of what they'd like to do.) I don't need glowing bars and symbols, and I think the chat box looks even more confusing to look at than the one we have currently. Minimalistic and simple is the way to go with this game in my opinion. I want things there for me to look at if necessary, but I don't want it constantly catching my eye instead of the fight. I also don't want stuff all over the screen either. A lot of the information I get from the fight I see by just watching it, rather than reading. I know some people cannot, but I play on a large tv and can see things like when a mob is readying something or when it says "incapacitation" etc on a mob depending on what you're doing to it. And the text for that isn't over the top either. It doesn't draw too much attention away from the fight and it informs you, which is welcomed in my eyes.
Edit: Btw, who thinks they should add a "block" text over your character if you block with a shield? lol (It doesn't seem to show a proper blocking animation so you can do phalanx or something... it seems to just be doing such things blind right now unless you read your text box.)