Why must you make everything more complicated? Now I get to analyze more conspiracy theories. (Which is good!)
On an unrelated note, the Holy Grail War will begin after Overture! Well not really, but wouldn't it be nice? Examples:
Saber = Ky Kiske
Archer = Potemkin (because of his gun gauntlets?)
Rider = Dizzy (Ummm...wings?)
Berserker = Sol (gear-trigger?)
Assassin = Millia/Venom/Zato (Whichever's most well-known)
Caster = That Man
Lancer = Sin