Sorry for the late reply but about your overall plot question, can ı recommend checking kratos' wiki page's description? I think it would answer your question. I cant really answer anything about gow4 though since ı never played it and dont know anything about it.After finishing gow 3 remastered I realized how confusing the plot is when jumping to gow (4?) ps4 because there is norse myths and stuff. Can someone shortly explain about the overall plot. I know 1-3 are same ongoing story and it ends to the 3. What happens after that and how kratos finds himself in the norse stuff? I thought the 4 was reboot but there are things that links to the previous games like the blade of chaos.
And finally are all the myths used correctly or are they just inspired/changed?