Assassin's Creed Valhalla Theory
Okay, so what, generally, is Valhalla? It's the place where great warriors go to feast and drink and wait to be called on to fight during Ragnorak.
So what is a common theme during Assassin's Creed? Great warriors who often come across powerful mystical artifacts.
We know that the Isu relics have the power to imbue great abilities: warping bodies and minds, recording memories, healing, super-strength, warping time and space, immortality.
What if Valhalla is a place outside time and space where OUR heros have gone? Maybe there are nanobots or something that latch on to people with Isu bloodlines that have the ability to record memories and thought up until death. These are uploaded into a Valhalla super-cloud, and the "worthy" are reborn into this dimension, until they are needed to fight against encroaching chaos - say, like Juno and her insane followers. Especially given that everything is tying back to the modern era and the Assassin Brotherhood that has taken a major beating in the last few years.
I want to see Eivor walking through a golden dimension with tall spires as people from all across time wait around for their last great battle. I want to see Altair brooding on a ledge while Ezio and Jun dance on golden roads. I want to see Bayek comforting Arno over lost love. I want to see Kassandra and Alexios playfully wrestling while Jacob and Evie gripe that they can't get a decent cup of tea in Eternity because Connor and Aveline keep dumping it rivers. I want Layla to see all this and be given a message by Desmond to deliver to his loved ones. I want a reminder that everything is connected, past and present.
