I'd love to see IRCv3 take off more: https://ircv3.net/irc/ I also want to understand web clients more, do they use WebSockets? Can we spec that out to be part of every IRC server out there?
Some IRC servers are starting to implement native websockets but that introduces several issues, so many networks use a websocket gateway to accept websockets to their network, such as https://github.com/kiwiirc/webircgateway
Then for IRCv3, most clients these days do support their specs in some form of way, and it's growing :)