[quote=Nimda]
Well the problem with that is that you underestimate Accelerator's apathy.Concerning the idea, I may have to mull it over a bit, although Codex aren't really "reborn," but it's more like their title is passed down to an heir.
[/quote]

That doesn't conflict: An external force rebirthed him. Maybe that external force saw him as a threat, but simply killing him would produce an heir. This option would keep him out of the picture for a longer time.