With the advent of artificers, item buffs have gone from being relatively unique (Mabar light potions, Devil Assault augment crystals, and guild augment slots) to pretty much a given in many group now.
I enjoy this dimension of the game, but it's creating a new problem - keeping track of your item buffs. Mousing over the item on your hotbars was enough back when you only had one or two items to keep track of (and usually with pretty long durations), but now that we potentially have multiple items to keep track of, many with short durations, we need a better option. That being said, the regular buff bar has already gotten way too full as it is, so my preference would be NOT to add them to that bar.
What I'd like to see is a second buff bar added that is dedicated specifically to item buffs. Put it between the buff and debuff bars, and have it display timers for any item that you currently have equipped that has limited duration effects - artificer buffs, temp augment slots, what have you.
One addendum, though: given how controversial UI changes tend to be, as well as understandable concerns about screen clutter, it would be best to include an option in the UI menu to turn off this extra feature. But I know I'd use it!