Currently, you load into an invite-only instance of your selected home world when you launch the game. I'd vastly prefer for it to be friends+, so I could hang around there and let people join me as and when they please.
I believe this would also help somewhat in situations where a user gets on to see their friends and finds all of them are in invite instances, where the common choices would usually be to either exit the game or request invites with no guarantee of hearing back.