I recognize that the cyclical nature of conflict is something key to Taro's work, especially NieR, but I also think that the conflict has, in some small way, been changed. 2B, 9S, and A2 are free from fighting. Adam, Eve and the Machine network are off in space or are all dead. Jackass is about to bust open the secret behind YoRHa. One way or another things have changed.
Like, NieR's story is ultimately tragic, it ends with the extinction of humanity for god's sake, but it still happened. It still mattered. A new Shadowlord didn't just pop out of the blue.
Plus while the Emil Heads do confirm the existence of Machines, the descriptions are so vague that it's hard to get a grip on what's going on other than "stuff is happening."
I feel like just going "respawn lol" cheapens the story.