In regard to this, I have heard people talking about how Emperors can leave the campaign, so it goes to the person next in-line. Is this true? And people were also talking about how you can let a keep get taken, then re-take it for the next in-line Emperor after the current one leaves, does this work too? If these are not true, does anyone know the method of how people can do this?
Thanks for any clarification on this!