I have a humble suggestion, fix your servers and expand their functionality so that returning people can like the game enough to invite their friends back and actually have their friends be able to make a new character.

My world and a handful of others are sealed. We have friends that we want to join us in Durandal and they cannot. Rather than trying to coax back a mess of disinterested, bored and rage quitters why not allow new blood, people that are excited to join in?