So I was thinking about making this myself, but I have no place to start since I know nothing about creating addons as of yet. Anyway, I was thinking of a very simple addon that displays "Hot Streak" (the new mage talent for an instant pyrobalst, it's appears as a 10 second buff) on your screen when you gain the buff.
With the new raid wide buffs it is hard to keep track when you get it, so if you had a raid-warning style message that would be fantastic. And I figure this wouldn't take any time at all to code up for those who are able to dit ;).
i added it to my parrot settings. still sorta gets lost in the shuffle, tho. it even plays a soundfile and everything. omen's threat messages always get my attention, maybe i should aim for something like that. not sure if i could pull it off with parrot, tho.
I created ( or maybe better Copied) an old Addon (PriestReggen) and modiefied it ab bit.
It creates an Icon on the Screen when you gain a Buff like Hot Streak or Inner Fire.
It is actual not Ace but the idea is exactly what you are looking for.
Maybe I get some Time and will recode it completly. The Code itself is really crappy and its very Hard to add Custom Buffs to Track.
It is not localized in any way. If you want to test Hot Streak, open the File Proccer.lua and search for "Kampfeshitze", replace it with "Hot Streak" and it will Display your buff.
If Anyone has time to Code, pls feel free to contribute.
There will be a lot of new abilities which rely on buffs gained from proccs and if no other addon like that is on work I would suggest to Code in Progger.