that doesn't make the slitiest sense in the world. The whole potter family to disapear like that. The books are very inpredictible, but if one thing we know for surre is that Harry will kill Voldermort! simply because he has the power to do so. And many characters will die. I'm not sure about Dumbeldore, because if Voldy (jk gets annoyed when we call him so) had the power and knowledge to come back in flash from the death, then DD will be as well capable to do the same. So JK will just waste the paper on killing him. Perhaps , but maybe perhaps the whole trio would die, this still makes a sense and would turn the HP books to a classic tragedy🙁
JK's made harry go through a lot of pain in his life...i mean i dont think she'd like chair <-- kill him off, but i think to a certain degree, a LOT more of his friends will be gone by then...probably ron or hermione...but for some strange reason i think in the final battle, neville will have some important part to play (that will FINALLY make his grandmother think more of him). i dont know why its just this inking feeling...