Ihtiran:
Option 1: Definitely in defense of either someone close to him, or the entire city of Regalia, something that he would be remember by people for.
Option 2: Killed by his sister after Ihtiran became corrupt and dark.
Option 3: Dies peacefully at an old age, having a wife and children, and passing with his family around him, hopefully his wife having passed before him so he does not leave her alone.
Toran:
Option 1: Killed by Droe Falden after attempting to kill him with his Demon Powers.
Option 2: Get's killed after the Guard discovering him being a demon after killing Droe Falden.
Option 3: Kills Droe Falden, becomes a Serial Killer, placing the blame on the Guards not being able to protect their citizens by leaving behind wounds that make the attack look to have been done by a horde of vampires, then is caught for being a demon and slain by a Guard Captain, preferably Thomas Kade or Jared Silverhand.