I would like the ability to simply right click on a audio items, events, or anything else, and highlight it with a color. Anything that you can find in a tab. Yellow, red, green, purple, orange... the ability to simply highlight things would be just a quick and simple way to tell myself that something needs doing. And also, if I could have the ability for highlighted events to NOT be included with source control, or with source control if I so desire. That way, my highlights won't bugger up the shared Wwise project and only I will see it. Notes are fine and all, but the color highlighting would be a very cool quick and visual way of quickly identifying to-do items.
It could be like how Apple has it in their Finder. Oh, and adding a tag to the color would be cool too.