Resizing and moving all parts of the UI (and saving the configuration) would be wonderful to have, but I have a feeling this may have to be something that modders do if it is possible.
An option to increase the size of the hotbar is going to be necessary for a lot of us. I would like to have multiple hotbars on my screen to which I can add/remove whatever I want and arrange it in any order. This would make combat feel much better for me, there is more than enough micromanaging to move everyone around, and having to click multiple times just to cast a spell at later levels in addition to all of that is going to make it even worse.
