If all they are doing is adding new worlds, I don't think its going to fix anything. People want to stay on the worlds they are on with the friends they have made. Especially when it comes to the legacy worlds where people have been playing together for a lot longer. Unless they increase the capacity of current worlds, I don't see it getting any better.

I don't know beans about networking and servers, however if it were possible I think it would be better to use the new machines to boost the capacity of the current worlds instead of adding more. Or possibly even introduce overflow zones/servers.

As for those blaming AFKers. The plethora of AFKers are a symptom. They are not the problem. If the capacity weren't so limited, people wouldn't be sitting AFK just to reserve a space for themselves. An automatic idle logoff wouldn't fix anything, and would only encourage people to come up with methods to circumvent it. And they would, almost immediately. Waste of resources to devise one now, if you ask me. However, an optional idle-logger like what XI had might be desirable down along the line for those who have a habit of falling asleep at their keyboards.