[quote=Rafale]
There's always the numerous theories on this page. For all that we know, Cipher could be Mobius [I]or[/i] Yellow 13. Crazy.
[/quote]

I read a fanfic that had the central idea be that Mobius One and Blaze were the same person, and it was pretty good. Unfortunately, like so many good fanfics, it was never completed and left to be abandoned pretty close to the end. I don't think it's even online anymore either, sadly.