Due to the... unfortunate nature of why he left the order, it would be bad comedy for Aeonas to die at the hands of the Scarlet Crusade now. The Crusade is an organization of zealots and lunatics and they've been growing increasingly brazen in their willingness to commit violence against anyone who they imagine to be enemies of the light. Go to the Scarlet Monastery in Tirisfal Glades and find out if Aeonas still lives.