I'm a massive fan of the first 3 games, all of them are fucking awesome imo, especially 2.
I even liked Ascension, the one everyone forgets about, though the formula was obviously starting to get stale, I never got around to playing the second PSP game, honestly the series felt like a waste on PSP despite me liking Chains of Olympus, but I honestly can't believe they wasted Atlantis as a setting for a fucking PSP game.
As for the 2018 game, I liked it a lot too, though I missed those sweeping, cinematic camera angles (though seeing epic scale stuff from a ground's eye view was cool in it's own way), I also missed the variety of locales you used to get since everything revolved around a central hub world (but it was cool how Ocarina of Time esque it felt) and obviously I missed the nudity and more graphic violence.
But while it was toned down the game didn't feel like a slap in the face to fans as say Last of Us 2 does and while I prefer "original recipe" they had done all they really could have done with it and the formula needed a big overall.
I also personally simply find Greek mythology cooler than Norse but again, they had done pretty much all they could have done with it.
However I'm worried about Ragnarok, the more time goes on, the more Woke Sony gets, 2018 was just the right levels of tolerable, but the presence of Anthony Burch on the writing team does not inspire confidence, I worry about another Last of Us 2 moment because video game development in NA is boiling down to "owning the Chuds!" and literally nothing else.