It would possibly make sense... I mean the bad guy in XIII-2 wasn't really bad, just misguided and a tortured soul. Who's to say that a demented offshoot of Lightning can't appear to bed defeating all the Primals to gain their power to save her world while unknowingly helping the Ascians? Or it could be some clone/time-machine SE craziness
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FFXI:Sylph - Perrin 75 Hume THF; Retired (At least from my use any way)
EVE Online:ScraperX; Retired
WAR:IronClaw- Peryn SW;SkullThrone- Grymloc BO; Retired