I saw some of the quality design of CoX's UI and icons brought up on CoH reddit recently and it reminded me that we haven't seen much of the CoT UI yet.
One of the great things the old game did with icons (especially power icons) was use similar symbols in them so it was obvious at a glance if a power was a template, pbaoe, heal, debuff, attack, etc.
This was done using not on the central symbol of the icon but the borders as well. Once the basic symbols were understood it made it easy to understand the basic concept behind any power with a quick glance at the icon. Colors were used to quickly tell the player what power set the ability was from as well.
I would love to see quality UI design touches like that in CoT.