Custom Emotes for Hype Trains
It would be wonderful if people could access custom emotes per channel by cheering/subscribing/gifting while the hype train is happening. Exactly how bit emotes work (once unlocked you have them forever) allowing slots for creators to put custom hype train emotes that can only be earned in their channel at certain hype train levels.
For example:
Hype Train Level 3 - Creator Emote Unlocked
Hype Train Level 5 - Creator Emote Unlocked
Hype Train Level 10 - Creator Emote Unlocked
This feature would benefit both the streamer and Twitch as I believe more people would be inclined to join a hype train more often to unlock limited time emotes, I think it would make hype trains feel even more special!