Well, while I cannot post any details, I can say the "polish" is coming along nicely. And we're still six months away from release. Plenty of time for more 'polish' and 'extras'.
ESO also welcomes modders to add whatever custom UI they want. I expect ESO to be like WoW in that regard (with an entire modding community making all kinds of add-on features that can be added to individual desire and preference). Character control: No word yet on whether ZOS will add Xbox 360 controls to the PC/Mac version or if that would be an 'add-on' by third party software.
The game definitely leans more towards the skill-based combat. No more "select target, stay locked on target, and auto fire". Like ZOS has already shown and talked about in interviews, you have to target an opponent on your own (aim) and you have to actually press something to attack (no auto attack). So combat is going to be a little more difficult for the gamers who are used to more simplistic games. And worse for PvP, when an opponent stands in front of you, you have no idea (just from appearance) what you are facing since everyone can wear any armor and carry any weapon. Players are going to have to "react" instead of predicting what's about to happen, going through a standard rotation, and know ahead of time what your opponent is going to do and how to counter it.
I'm a GW2 fan, but compared to what I've seen so far, ESO looks more "advanced". So far.... (and yes, there are some GW2 features I wish they would include in ESO, but I can't really go into detail about things that have not been revealed yet).