Amongst other things, the most pertinent information is...

• Free Party Chat
• 2000 Friends on Friends List

Information taken from this official video...

Good stuff.

Dualshock 4 windows drivers please.

With 2000 friends, you'd better be able to put them into folders or organize them in some way, sort of like lists on Twitter. Personally I'd like system level clan support, so that when you join a clan you don't need to add everyone from the clan to your friends list. Then your clan mates can be kept in a separate list from your other friends and you can have clan specific features like scheduling and clan wide messaging.

I would much rather have an enemy list, but 2000 is not enough.

THIS. I've been dreaming of clan support at the system level for a very long time. I thought it would be an awesome idea to have. I even shot out a small theory of what the ps4 can do with clans. In short, I said to have clans at the system level that will automatically integrate into the games you play as long as you allow it. Therefore, no stolen Clan names in certain games and keeps making it easy.