Server capacity will not fix this.

They could institute a system where if someone is afk, and someone else wants to get in, the person with the longest afk time will get kicked, maybe with a notification message. Simple. Once the system goes in place, after a while, people will just logout, knowing they can log back in later. And give us a que system, a true one. I dont care if I am in slot 10,000. At least I know that I will get back in the game sometime and I can AFK the login when I know the ques is there and will log me in eventually.