How about when a faction wins Emperor then the crown goes to the current player ONLINE with the highest AP. Instead of the player with highest AP. Since it was more then likely that person who made the push for Emperor and not the one who is currently offline.
It would also be cool to have maybe a champion status or something that can only be attained by killing the player who has the status. The status would then be transferred to the person who made the killing blow. And if that person logged off then .... Lots of ideas on how to make this fun and work.