I thought this blog post from Weber might amuse readers of his Safehold series. He does specify that it is a 'joke post' but I wonder whether it is an indication of how far the Safehold series might be intended to run. I'm not saying he is seriously intending to merge Safehold with the Fifth Imperium but maybe he is seriously intending to take Safehold into space?
http://www.davidweber.net/posts/443-how-safehold-wont-end.html/
http://www.davidweber.net/posts/443-how-safehold-wont-end.html/