Raids/Parties Separate from stream
The most basic idea is if I have two or three friends and we want to watch a stream from our own homes together we would have to link a stream and then we'd chat about it in discord or wherever, because if it's a big stream we dont want to have to find each others chats.
It'd be cool to have a friends list on Twitch and be able to form Guilds/Parties/Raids and not have it be attached to a stream.
This could obviously be expanded on and all kinds of rewards or tiers to unlock depending on how long your party/guild whatever you want to call it stays active or how big your watch party is.
Minor features like "use stream chat when party joins stream" vs "keep party chat separate from stream chat" would be cool.
Just something simple where you can join up to 5 or so people and easily move around or even just the ability to friend people and see what they are watching.
I'm a bit of a twitch noob so let me know if something like this already exists.