Well, I wouldn't really like a Fallout game that had nothing to do with any previous lore of any kind.
My point really just is that 'nothing is
needed'.
Like, if the next game is set on the west coast I'd expect to see super mutant and ghouls and the NCR and possibly the Legion.
But none of them are really "needed" if the game were to be set in Alaska.
So by 'nothing is
needed' I mean that Nuka Cola, it doesn't "have to be" in the next Fallout game.
It'd be nice to have it there, but it isn't essential to the overall experience.
Fallout doesn't need a checklist of lore essentials for each game.
Like "Okay, we're designing a new Fallout game, what does it need?" "Ghouls." "Super Mutants." "Nuka Cola." "Power Armor" "Not just power armor but BOS or Enclave" "Yup those are needed" "Then we have to have Deathclaws." "Yup. And of course the AER series." "Absolutely." "How about the Wattz series?" "Pfft, no.
" "
"
Nothing is "needed" for any Fallout game, it all depends on what fits the location and setting.
But since Deathclaws, Nuka Cola and Ghouls are so widespread I would say that while they aren't needed there isn't really any reason to not include it either.
Wouldn't feel right if a Fallout game had nothing of the previous lore in it though but I dunno if I would mark it as non-canon either.
It'd feel weird, that's for sure, but it wouldn't be completely against the lore either.
I mean, if it's in Alaksa, why would there be Deathclaws there?
Maybe the ghouls were all hunted down?
Maybe there were no ghoulification taking place there?
Maybe ghouls can't handle that cold considering (thanks to Broken Steel) Ghouls have no body heat.
Maybe all the Nuka Cola has been drank(???) I mean, it's been 200+ years, that it's still around with no one producing it is more weird than that it would still be there.
Maybe all the pre-war posters on the billboards wore off due to, yknow, weather? (It's been 200+ years)
Maybe they produced new weaponry that is better than the old and they stopped producing the old all together?
It could very well still make sense, despite feeling completely alien.
But yknow what? It could be a refreshing game, I mean, how many times are we gonna fight Deathclaws exactly? How many times do we have to deal with Ghoul bigotry? How many more Nuka Cola merchandise and posters do you all want to stare at for the next couple of games?
To summarize: nothing is needed, it'd feel weird if something was left out, but it could be refreshing to let something new out into the spotlight instead of beating a decade old horse even more to death. Then again, we fell in love with Fallout cause of it's lore, setting and design, if these thigns are abandoned it might become "too" alien.
Soooo..
Nah.
I still don't think anything is
required for a Fallout game, it just wouldn't make much sense to not see Ghouls unless it's in a cold place like Alaska or northern Canada.