Add Google Translate (or another translation service) directly into Discord.

This is a feature of Twitter, and it's incredibly useful. I've communicated in Russian, Chinese and Filipino communities in the past, and it's always a hassle having to go outside of the Discord app to translate messages.

You could have an option to translate messages in the drop down menu. Since Google Translate, for example, already has a feature to detect which language a message is in, you could simply press it and the text changes to your native language. Then there could be a button on the bottom to swap between showing the original text and the translated text.

This would make communicating on Discord easier and help with language barriers a little bit.

This has already been a feature of mods like BetterDiscord for a while now, so it's very possible. Having it built-in would be both convenient and would discourage people from using third-party clients.