Elder Coin "Bonus" Loot Window Addon

[Bruce657]

I'm looking for an addon that will update the bonus loot frame to display a list of items that you have a chance to win based on your class, spec, and raid difficulty (LFR / Normal / Heroic). I know I can find this information in the Dungeon Journal, but I usually forget to check ahead of time and it would be really convenient to have it available on screen when I get the popup and have to decide if I want to use an elder coin or not.

Assuming one doesn't exist, which I presume it doesn't, does anyone know if it's feasible or if there is some limitation that would prevent it from being possible to create said addon?