It would be great to see the ability to remove items from the Event List instead of having to bury them with other notifications to hide things.
As I'm sure many people are aware, there is a current trend (ongoing for some time but definitely more widely prevalent) of users creating names that are unsavory in order to either get a reaction, a clip, or some other form of "recognition". Unfortunately, it appears the Twitch profanity filters don't do a great job of catching these and some pretty questionable names come through.
It would be a great change to be able to go into the Event List (either through StreamLabels or the main page) and remove an individual event in the list so that it no longer shows up on stream as a past event. With the Twitch Community Guidelines changing, this is even more of a need for fear of people targeting a streamer in a way they may have trouble controlling.