Sulla pagina di Cipher c'è scritto date of death:unknown (=data di morte: sconosciuta), quindi non si sa che fine faccia
Link: http://acecombat.wikia.com/wiki/Cipher
Su quella di Mobius 1 ho trovat questo:
Mobius 1 is a secret enemy ace in Ace Combat Zero's Gauntlet extra mission. He appears in his characteristic F-22, shoots down Wizard Squadron's YF-23 formation, and duels with Cipher. Besides being very agile, he is capable of launching multiple salvos of missiles like the player, and can fire missiles backwards like Gelb Squadron.Note:this is considered "Non-canon" presently. As Ace Combat Zero may clue that Cipher could be Mobius 1.
Link: http://acecombat.wikia.com/wiki/Mobius_One