There are a ton of really cool global badges that are no longer obtainable due to Twitch no longer selling games on the site. Seems a shame that these icons were created by some talented staff but nearly no one has them.
It would be neat to see them put out to the public again in some fashion.

Emotes are a huge draw for limited time events. People LOVE getting new emotes and showing them off. But the emote list is getting a little chonky. Maybe in the future we could have limited time events but earn new badges as well? Gives the users something they can showcase and further customize their presence in chat without adding much bloat.

Sorta like the last event badge. The Direct Relief snowflake in 2018. Heck, maybe I'm just salty I missed out on it, haha.

Sorry if this isn't in the best category and thanks for all the changes in the last few years :)

Added Edit: this newest emote event made me think - what if a badge could be earned only if a user collects all the emotes? It would give more incentive to gather them all and would be like a completion trophy.