What WoD Plugins would you like to see?

Hey there,



I have a friend who's a programmer and he wants to get into writing plugins.

Of course, he wants to make plugins that the community needs the most.



So he's wondering:



What Draenor Plugin do you want to see? What would be the most useful?



Please don't say timber, he's already looking into that.



He just doesn't want to work on a plugin for long only to find out it already exists or someone else is working on it too.

What WoD Plugins would you like to see?