The Holy Grail Personified

The Holy Grail is a dish, plate, stone, or cup that is part of an important theme of Arthurian literature. A grail, wondrous but not explicitly holy, first appears in Perceval le Gallois, an unfinished romance by Chrétien de Troyes: it is a processional salver used to serve at a feast. Chrétien's story attracted many continuators, translators and interpreters in the later 12th and early 13th centuries, including Wolfram von Eschenbach, who makes the grail a great precious stone that fell from the sky.
The Grail legend became interwoven with legends of the Holy Chalice. The connection with Joseph of Arimathea and with vessels associated with the Last Supper and crucifixion of Jesus, dates from Robert de Boron's Joseph d'Arimathie (late 12th century) in which Joseph receives the Grail from an apparition of Jesus and sends it with his followers to Great Britain. Building upon this theme, later writers recounted how Joseph used the Grail to catch Christ's blood while interring him and how he founded a line of guardians to keep it safe in Britain.
The legend may combine Christian lore with a Celtic myth of a cauldron endowed with special powers. Abstergo used Subject 16, Clay Kazmareck to find more information about the whereabouts of the Holy Grail, assuming it is a one of the Pieces of Eden left by the First Civilization. According to one of the E-mails in Assassin’s Creed I, most of the artifacts related to Jesus Christ are literary devices or devices derived from/inspired by the Pieces of Eden:
"Grail - We are removing the Grail from our list of objectives. There is insufficient evidence to confirm its existence. Current examination of Subject Seventeen indicates that aside from the Piece of Eden, all other artefacts related to Christ-figure are literary devices (or derived from Piece of Eden) and not actual objects. Even if the object is real, its use to us at this stage is negligible. Our resources are better used elsewhere.”
After that, Clay started talking about Eve. Eve was references in multiple eras. Clay even asked Desmond to find her, Juno also mentioned something about finding Eve and the last time we heard her name was in Dead Kings were someone named “Lady Eve” was mentioned which makes me think that Eve isn’t just the leader of the revolution of humans against the First Civilization circa 75,000 BC, she could be some sort of Sage who’s always reincarnating to perform a certain role.
Perhaps just like how Juno made her husband, Aita a Sage ensure that he always supports her plans and giving her a proper body and power to rule the world, Minerva -who was sympathetic with the humans- could have done the same with Eve, to make sure that whenever Juno gains control, Eve will always be there to lead the Assassins against her, cause after all, she’s the one who did it for real, so nobody’s as experienced as she is.
In old history, the Holy Grail is sometimes thought be a metaphor for a woman who’s thought to be the wife of Jesus Christ, Mary Magdalene. Now could it be that Clay found about the Holy Grail being a person, and that person is Mary Magdalene, a potential reincarnation of Eve? I believe it is possible.
As I said, Eve was references numerous times in the franchise and in numerous periods of time, so what makes it so impossible that she’s indeed a Sage, except that it’s the reincarnation of Eve rather than Aita? Since we know that AC:Victory will be heading to Victorian England, there's a great chance that this could be the Piece of Eden and the mystery that we'll be after.