Channel Points Permanent Emotes
Make Affiliates and Partner able to create default points reward which gives access to one emote (out of emotes that the streamer has selected) to use forever. The emotes could be sub emotes or special points emotes. These could be used to reward loyal viewers and create limited time emotes that could be used even after the limited time is over.
I feel that this is a very under-considered thought, and cannot possibly conceive any reason this shouldn't or couldn't be implemented. Even if only for the sake of a custom name and description.
I'd love to create some Channel Points emotes that are high in number to promote watching the stream, subscribing, etc, so that way they can unlock extra permanent emotes other than via bits. Some people don't like to buy bits, and want to just use a Twitch Prime sub to earn the extra points needed to unlock temporary emotes, why not an "Permanent Emote" toggle, with a minimum of something like 50k or 100k channel points so that way it's not easy to get, and it would reward loyal regulars.