I've recently finished Valhalla and a friend is starting them game now. I had my immersion ruined by the way the arcs flow if you do them by suggested power level, such as Sigurd getting kidnapped and then having to play matchmaker in Essexe. Below is the list I compiled while thinking about it, I told him the hidden one arcs could be done at any point really. I tried to group all the alliance quests together and then have the Sigurd arcs flow as I feel it should. Feedback is appreciated!

Prologue
Ledcestrescire (Level 20)
Grantebridgescire (Level 20)
East Anglia (Level 55)
Lunden(Level 90)
Lincolnshire (Level 160)
Vinland (Level 160)
Jorvik (Level 190)
Eurviscire (Level 160)
Essexe (Level 160)
Sciropescire (Level 130)
Oxenfordshire (Level 90)
Cent (Level 130)
Suthsexe (Level 160)
Glowecestrescire (Level 220)
Wincestre (Level 250)
Snotinghamscire (Level 250)
Asgard needs to be done by this point

Since Assassin's Creed Odyssey I stopped caring about Layla Hassan but I was curious about how she would be handled in Assassin's Creed Valhalla since this was promised as the end of her arc. Thanks to "Gamer Little Playground" I watched the ending for her story (I skipped the Eivor parts as I actually intend to play Assassin's Creed Valhalla someday) and... it was not bad. Certainly not as bad and how Desmond Miles was killed at least but not great either.
I certainly think it was ridiculous that by chance Layla was stabbed by that simulation device and was fine with it and the Staff of Hermes Trismegistus she was holding sort of conveniently fell right on Basim's... "corpse" I guess and miraculously revived him, so the Staff can revive dead people now? And then it cuts right through Basim at New England's cabin talking to Rebecca and Shaun and they just let him there with the Animus and apparently going along with his mad idea to contact William Miles in person (which is obviously very dangerous to him... "Daniel Cross 2.0") instead of insisting to call him first??? Quite a few gaps there.
And Layla apparently got stuck in that simulation machine to "slow it down" indefinitely to figure out a better future for Earth but what would she do with it, especially when she is implied to die from radiation, how would she transmit her brilliant solution? She accepted her doomed fate way too easily. Not to mention when she dies, won't the Earth's Cataclysm happen anyway? Templars apparently are no longer a big deal either.
As dirt as Desmond Miles was done at least he went out with a bang, but Layla Hassan went out with a whimper. Bah. I absolutely missed out a lot of plot stuff in this game, but this ending did not impressed me.

I think it would be somewhat devastating for me if, in the main story or in the following DLC's, Eivor doesn't become a hidden one. I haven't completed the main storyline yet but from what I've found online, they're never actually inducted into the brotherhood? After not having them at all in Odyssey I think it would be a terrible missed opportunity to just have them on the outskirts of this game without ever actually joining them. Will we become a hidden in one of the DLC's?