Updated for 8.0
Counterspell will glow and bounce if it's available and your target is casting an interrupt-able spell.
Spellsteal will pop up if the target has a stealable spell.
Ice barrier will start to show the time remaining on the buff when it is re-castable (35sec). Ice Barrier also shows the current absorb value.
If Blink/Shimmer is on CD it will show the timer out of combat. Cauterizing Blink will show if you are below 100% hp and you have the buff on you.
Most of these only show up if the respective spell is on cooldown! you should see no more than 1-2 icons at a time
This is a collection of 15 auras:
Spellsteal (icon)
Counterspell Glow (icon)
Counterspell CD (icon)
Ice Barrier Active (icon)
Ice Barrier Active <35s (icon)
Ice Barrier CD (icon)
Blink / Shimmer CD (icon)
Shimmer (icon)
Cauterizing Blink (icon)
Ice Block Active (icon)
Ice Block (icon)
Hypothermia (Cold Snap) (icon)
Invisibility Active (icon)
Invisibility CD (icon)
Frost Nova (icon)