Mini-spell icons (just like wands) are on the way for both potions and scrolls.
– Graal
Sounds handy indeed! This refers to the tiny icons that are put on top of the regular item icon. I would like to see, at some point in the future, a wider variety of potion icons. Baldur’s Gate 2 was particularly good for having a wide variety of these, making it simple to grab the right one in a hurry.
Having mage scrolls look different to clerical scrolls would also be rather useful.