I wouldn't go so far is to call it an AU...but frankly given what we are dealing with here in regards to what Hickman has Moira do with her power is something I don't believe has been explored before and therefore I can't find how to clasify it. I mean it's not time travel, it's not dimension hopping, it's not reincarnation as we know it so frankly i am stumped. Maybe in my case at least i do need him to tell me in order to accept it adn move on, wether other let it go or not is not really my concern but theirs.
I'm not saying Hickman will do or won't do anything because I don't bother to predict his actions anymore because I am frankly not on that level as far as mapping out the series of events that will take place in the grand scheme of things.
I can't tell you what purpose it would serve because like i said i could be wrong on all accounts and frankly if he does pull a twist it won't be at the prologue of this new path, at least i don't think he would but again Hickman is not someone you can really predict given his mastery over the long term plan as opposed to just winging it. Hell for all i know he is reading all these comments and going "Yes! Dance my puppets! Dance!"