That is what I understood too. It doesn’t seem particularly hard to add new letters to Unicode too if you try a bit. However that is a bit harder with emojis,

That is what I understood too. It doesn’t seem particularly hard to add new letters to Unicode too if you try a bit. However that is a bit harder with emojis, that have their own subcommittee, which seem to be more bureaucratic and also more popular than the rest of Unicode. Everyone wants to make a new emoji.